diff --git a/Manifest.toml b/Manifest.toml
index 6b0f60375fd8dbc30529b140f6eba01b4eca6ce6..f7d6a38400ad3c42e0409fdb5bcc479d11a5d352 100644
--- a/Manifest.toml
+++ b/Manifest.toml
@@ -17,9 +17,9 @@ uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
 
 [[Bzip2_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "92463331a641b19fc3baa427e0b76cdbd54dc05d"
+git-tree-sha1 = "3663bfffede2ef41358b6fc2e1d8a6d50b3c3904"
 uuid = "6e34b625-4abd-537c-b88f-471c36dfa7a0"
-version = "1.0.6+1"
+version = "1.0.6+2"
 
 [[CSSUtil]]
 deps = ["Colors", "Compat", "JSON", "Measures", "Pkg", "WebIO"]
@@ -35,9 +35,9 @@ version = "1.0.2"
 
 [[Cairo_jll]]
 deps = ["Bzip2_jll", "Fontconfig_jll", "FreeType2_jll", "Glib_jll", "LZO_jll", "Libdl", "Pixman_jll", "Pkg", "X11_jll", "Xorg_libXext_jll", "Xorg_libXrender_jll", "Zlib_jll", "libpng_jll"]
-git-tree-sha1 = "a414ebdc4bd60b0fda62797f47c7409670c4ad1c"
+git-tree-sha1 = "e7bd31d1588b711113d48c7013a7d8f0b5203940"
 uuid = "83423d85-b0ee-5818-9007-b63ccbeb887a"
-version = "1.16.0+2"
+version = "1.16.0+3"
 
 [[ColorTypes]]
 deps = ["FixedPointNumbers", "Random"]
@@ -70,9 +70,9 @@ version = "1.1.0"
 
 [[DataStructures]]
 deps = ["InteractiveUtils", "OrderedCollections"]
-git-tree-sha1 = "5a431d46abf2ef2a4d5d00bd0ae61f651cf854c8"
+git-tree-sha1 = "73eb18320fe3ba58790c8b8f6f89420f0a622773"
 uuid = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
-version = "0.17.10"
+version = "0.17.11"
 
 [[Dates]]
 deps = ["Printf"]
@@ -94,9 +94,9 @@ uuid = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 
 [[Expat_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "e1b4190be75ba8d03ce2bec3a6cfc7a939c713ea"
+git-tree-sha1 = "9cdd4b1523086c9d93604599e3a389e8941e52b0"
 uuid = "2e619515-83b5-522b-bb60-26c02a35a201"
-version = "2.2.7+0"
+version = "2.2.7+1"
 
 [[FFMPEG]]
 deps = ["FFMPEG_jll"]
@@ -120,15 +120,15 @@ version = "0.7.1"
 
 [[Fontconfig_jll]]
 deps = ["Bzip2_jll", "Expat_jll", "FreeType2_jll", "Libdl", "Libuuid_jll", "Pkg", "Zlib_jll"]
-git-tree-sha1 = "f610d280bfd1a3a43d5c815e63d395ff08692fe2"
+git-tree-sha1 = "141fe5f6d4013304d2ca5af0ac20ef4855bcc4e5"
 uuid = "a3f928ae-7b40-5064-980b-68af3947d34b"
-version = "2.13.1+10"
+version = "2.13.1+11"
 
 [[FreeType2_jll]]
 deps = ["Bzip2_jll", "Libdl", "Pkg", "Zlib_jll"]
-git-tree-sha1 = "8e290780d75bc0f676548c3bb84c153f83d14bdc"
+git-tree-sha1 = "7d900f32a3788d4eacac2bfa3bf5c770179c8afd"
 uuid = "d7e528f0-a631-5988-bf34-fe36492bcfd7"
-version = "2.10.1+1"
+version = "2.10.1+2"
 
 [[FriBidi_jll]]
 deps = ["Libdl", "Pkg"]
@@ -156,27 +156,27 @@ version = "3.24.11+1"
 
 [[GeometryTypes]]
 deps = ["ColorTypes", "FixedPointNumbers", "LinearAlgebra", "StaticArrays"]
-git-tree-sha1 = "9d7520999ca80a51f1bf41be2268a9ac0e4f0619"
+git-tree-sha1 = "96fd99cf83b1952a7d8cb54f4c585a648275805a"
 uuid = "4d00f742-c7ba-57c2-abde-4428a4b178cb"
-version = "0.8.1"
+version = "0.8.2"
 
 [[Gettext_jll]]
 deps = ["Libdl", "Libiconv_jll", "Pkg", "XML2_jll"]
-git-tree-sha1 = "0b6b238d315698441a9bf24ea9b20ac19cc7e513"
+git-tree-sha1 = "e43d686df1f45cab7a2570ff63642a3ea618ca5f"
 uuid = "78b55507-aeef-58d4-861c-77aaff3498b1"
-version = "0.20.1+1"
+version = "0.20.1+2"
 
 [[Glib_jll]]
-deps = ["Gettext_jll", "Libdl", "Libffi_jll", "PCRE_jll", "Pkg", "Zlib_jll"]
-git-tree-sha1 = "9a7e1ad28f1313da50e5ab8568725bed5f131ad1"
+deps = ["Gettext_jll", "Libdl", "Libffi_jll", "Libiconv_jll", "Libmount_jll", "PCRE_jll", "Pkg", "Zlib_jll"]
+git-tree-sha1 = "09ea3797c586eedbb383eb8f1c950a12923f1541"
 uuid = "7746bdde-850d-59dc-9ae8-88ece973131d"
-version = "2.59.0+1"
+version = "2.59.0+2"
 
 [[Graphene_jll]]
 deps = ["Glib_jll", "Libdl", "Pkg"]
-git-tree-sha1 = "a46e501da1b4a006fb26fd03eb6d927f7d112604"
+git-tree-sha1 = "9d0b534de52582b7f1f044d622b858915dc6b126"
 uuid = "75302f13-0b7e-5bab-a6d1-23fa92e4c2ea"
-version = "1.10.0+1"
+version = "1.10.0+2"
 
 [[Graphics]]
 deps = ["Colors", "LinearAlgebra", "NaNMath"]
@@ -274,14 +274,14 @@ version = "3.100.0+0"
 
 [[LZO_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "26ff20dc58051d7eda388662b90049d192f8d0a1"
+git-tree-sha1 = "71119990371c93f027bee80547ee908ddfe7c5ca"
 uuid = "dd4b983a-f0e5-5f8d-a1b7-129d4a5fb1ac"
-version = "2.10.0+0"
+version = "2.10.0+1"
 
 [[LabGUI]]
 deps = ["Interact", "Mux", "WebIO"]
-git-tree-sha1 = "a3448740139bb8d52ffe1b95e98898fbb4064b93"
-repo-rev = "julia1"
+git-tree-sha1 = "6cb72e85bc2cb6e90d2daa6741579c5cd8576bf3"
+repo-rev = "tanklabsim"
 repo-url = "https://gitlab.control.lth.se/processes/LabGUI.jl.git"
 uuid = "31661155-7747-5a32-9846-082300d6a5a6"
 version = "0.1.0"
@@ -312,15 +312,15 @@ version = "1.5.4+0"
 
 [[Libffi_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "f2c12e7da9c4f7fab577619626b772f607e67b04"
+git-tree-sha1 = "68b165c609961207baa3174e03d6d56e7a37124c"
 uuid = "e9f186c6-92d2-5b65-8a66-fee21dc1b490"
-version = "3.2.1+0"
+version = "3.2.1+1"
 
 [[Libgcrypt_jll]]
 deps = ["Libdl", "Libgpg_error_jll", "Pkg"]
-git-tree-sha1 = "9592d031aac2566fb5cf9eeb28e2d7b05db9b9ef"
+git-tree-sha1 = "7efb7f5e75a0f7323cce366d3e44a2d225c5617a"
 uuid = "d4300ac3-e22c-5743-9152-c294e39db1e4"
-version = "1.8.5+0"
+version = "1.8.5+1"
 
 [[Libglvnd_jll]]
 deps = ["Libdl", "Pkg", "Xorg_libX11_jll", "Xorg_libXext_jll"]
@@ -330,15 +330,21 @@ version = "1.3.0+1"
 
 [[Libgpg_error_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "3332d872d131a6ee88f10f20d7d131ece886c424"
+git-tree-sha1 = "334284a62d6b8592099d28b78c76aefc266c03a2"
 uuid = "7add5ba3-2f88-524e-9cd5-f83b8a55f7b8"
-version = "1.36.0+0"
+version = "1.36.0+1"
 
 [[Libiconv_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "802f5b23c846cb4ed568cae0bfb0ce0d2ba1926d"
+git-tree-sha1 = "e5256a3b0ebc710dbd6da0c0b212164a3681037f"
 uuid = "94ce4f54-9a6c-5748-9c1c-f9c7231a4531"
-version = "1.16.0+1"
+version = "1.16.0+2"
+
+[[Libmount_jll]]
+deps = ["Libdl", "Pkg"]
+git-tree-sha1 = "621a6d7d527fd8e4812ca1154567bfdb81a3c517"
+uuid = "4b2f31a3-9ecc-558c-b454-b3730dcb73e9"
+version = "2.34.0+1"
 
 [[Libtiff_jll]]
 deps = ["JpegTurbo_jll", "Libdl", "Pkg", "Zlib_jll", "Zstd_jll"]
@@ -348,9 +354,9 @@ version = "4.0.10+0"
 
 [[Libuuid_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "5b0aaf3f931102e18b8b4b1590fe69708d3eb7d6"
+git-tree-sha1 = "7ae7eee3a9fe811b656347700c17fc9620ef4ecf"
 uuid = "38a345b3-de98-5d2b-a5d3-14cd9215e700"
-version = "2.34.0+3"
+version = "2.34.0+4"
 
 [[LinearAlgebra]]
 deps = ["Libdl"]
@@ -426,9 +432,9 @@ version = "1.3.3+0"
 
 [[OpenSSL_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "33661eb9d5484220b4367d067f499b30bafc9c12"
+git-tree-sha1 = "d2a6f25262d568b5a7e454cf7ff5066a79d16c7d"
 uuid = "458c3c95-2e84-50aa-8efc-19380b2a3a95"
-version = "1.1.1+1"
+version = "1.1.1+2"
 
 [[Opus_jll]]
 deps = ["Libdl", "Pkg"]
@@ -444,9 +450,9 @@ version = "1.1.0"
 
 [[PCRE_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "859aa38f2823d45940312575bca3c856f4a1fbab"
+git-tree-sha1 = "2c860a32ae9c421b52b654448bd31a31f437449a"
 uuid = "2f80f16e-611a-54ab-bc61-aa92de5b98fc"
-version = "8.42.0+1"
+version = "8.42.0+2"
 
 [[Pango_jll]]
 deps = ["Cairo_jll", "Fontconfig_jll", "FreeType2_jll", "FriBidi_jll", "Glib_jll", "HarfBuzz_jll", "Libdl", "Pkg"]
@@ -462,9 +468,9 @@ version = "0.12.0"
 
 [[Parsers]]
 deps = ["Dates", "Test"]
-git-tree-sha1 = "0c16b3179190d3046c073440d94172cfc3bb0553"
+git-tree-sha1 = "75d07cb840c300084634b4991761886d0d762724"
 uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
-version = "0.3.12"
+version = "1.0.1"
 
 [[Pidfile]]
 deps = ["FileWatching", "Test"]
@@ -474,9 +480,9 @@ version = "1.1.0"
 
 [[Pixman_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "cdddc5aab6ae8e3034dbf3c264e636fbf19fdee0"
+git-tree-sha1 = "ae66367153a89ecb2a5c7acc2df4ba082b729b6a"
 uuid = "30392449-352a-5448-841d-b1acce4e97dc"
-version = "0.38.4+1"
+version = "0.38.4+2"
 
 [[Pkg]]
 deps = ["Dates", "LibGit2", "Libdl", "Logging", "Markdown", "Printf", "REPL", "Random", "SHA", "Test", "UUIDs"]
@@ -484,15 +490,15 @@ uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 
 [[PlotThemes]]
 deps = ["PlotUtils", "Requires", "Statistics"]
-git-tree-sha1 = "df772cc7c78862da96af1ee85cd0111c6640e44e"
+git-tree-sha1 = "87a4ea7f8c350d87d3a8ca9052663b633c0b2722"
 uuid = "ccf2f8ad-2431-5c83-bf29-c5338b663b6a"
-version = "1.0.1"
+version = "1.0.3"
 
 [[PlotUtils]]
 deps = ["Colors", "Dates", "Printf", "Random", "Reexport"]
-git-tree-sha1 = "132e468bf7d67ee6c997c160b982a7ab2e7c3e37"
+git-tree-sha1 = "51e742162c97d35f714f9611619db6975e19384b"
 uuid = "995b91a9-d308-5afd-9ec6-746e21dbc043"
-version = "0.6.4"
+version = "0.6.5"
 
 [[Plots]]
 deps = ["Base64", "Contour", "Dates", "FFMPEG", "FixedPointNumbers", "GR", "GeometryTypes", "JSON", "LinearAlgebra", "Measures", "NaNMath", "Pkg", "PlotThemes", "PlotUtils", "Printf", "REPL", "Random", "RecipesBase", "Reexport", "Requires", "Showoff", "SparseArrays", "Statistics", "StatsBase", "UUIDs"]
@@ -587,9 +593,9 @@ uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
 
 [[Wayland_jll]]
 deps = ["Expat_jll", "Libdl", "Libffi_jll", "Pkg", "XML2_jll"]
-git-tree-sha1 = "0e7ae7fab73d43299b6b0332716dc2d0149f6b03"
+git-tree-sha1 = "77e7b942a796bc9530f089099e3caeef6cc123f9"
 uuid = "a2964d1f-97da-50d4-b82a-358c7fce9d89"
-version = "1.17.0+0"
+version = "1.17.0+1"
 
 [[Wayland_protocols_jll]]
 deps = ["Libdl", "Pkg", "Wayland_jll"]
@@ -623,15 +629,15 @@ version = "1.6.8+5"
 
 [[XML2_jll]]
 deps = ["Libdl", "Libiconv_jll", "Pkg", "Zlib_jll"]
-git-tree-sha1 = "ed5603a695aefe3e9e404fc7b052e02cc72cfab6"
+git-tree-sha1 = "39a309feb51413d39bdf544cf2fd09357bae37d2"
 uuid = "02c8fc9c-b97f-50b9-bbe4-9be30ff0a78a"
-version = "2.9.9+1"
+version = "2.9.9+2"
 
 [[XSLT_jll]]
 deps = ["Libdl", "Libgcrypt_jll", "Pkg", "XML2_jll"]
-git-tree-sha1 = "77d0086a876532cb4fae005d4c9ecc8236dcdceb"
+git-tree-sha1 = "d0baa21427b6621126bd9e9941b4f51bef5f9fca"
 uuid = "aed1982a-8fda-507f-9586-7b0439959a61"
-version = "1.1.33+0"
+version = "1.1.33+1"
 
 [[Xorg_compositeproto_jll]]
 deps = ["Libdl", "Pkg"]
@@ -653,9 +659,9 @@ version = "5.0.0+0"
 
 [[Xorg_inputproto_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "a941739b553f589cd264dc16fdeaf5300af30f51"
+git-tree-sha1 = "6f05096d08266571e6214fd2525f3e78b2c63060"
 uuid = "84d6cd60-beca-5f49-93c5-789031781a2d"
-version = "2.3.2+0"
+version = "2.3.2+1"
 
 [[Xorg_libX11_jll]]
 deps = ["Libdl", "Pkg", "Xorg_libxcb_jll", "Xorg_xtrans_jll"]
@@ -665,9 +671,9 @@ version = "1.6.9+1"
 
 [[Xorg_libXau_jll]]
 deps = ["Libdl", "Pkg", "Xorg_xproto_jll"]
-git-tree-sha1 = "e47d249f952653b7f1b0d3d7d7ed40d081d7096b"
+git-tree-sha1 = "711f2bbdbb0e90b90a71c5ccf835137e2def539a"
 uuid = "0c0b7dd1-d40b-584c-a123-a41640f87eec"
-version = "1.0.9+1"
+version = "1.0.9+2"
 
 [[Xorg_libXcomposite_jll]]
 deps = ["Libdl", "Pkg", "Xorg_compositeproto_jll", "Xorg_libXfixes_jll", "Xorg_util_macros_jll"]
@@ -689,9 +695,9 @@ version = "1.1.5+1"
 
 [[Xorg_libXdmcp_jll]]
 deps = ["Libdl", "Pkg", "Xorg_util_macros_jll", "Xorg_xproto_jll"]
-git-tree-sha1 = "f477af835cd12647d253b9c7a86e768b14d04fff"
+git-tree-sha1 = "1ffd7bc9c9d8bba6652516f3402ee1ef5f4cac70"
 uuid = "a3789734-cfe1-5b06-b2d0-1dd0d9d62d05"
-version = "1.1.3+1"
+version = "1.1.3+2"
 
 [[Xorg_libXext_jll]]
 deps = ["Libdl", "Pkg", "Xorg_libX11_jll", "Xorg_util_macros_jll", "Xorg_xextproto_jll"]
@@ -737,9 +743,9 @@ version = "1.2.3+1"
 
 [[Xorg_libpthread_stubs_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "5c2806e6e08b093ca2071e53602651f4a5e079da"
+git-tree-sha1 = "ec1e2973e4e624069be95f806dbd7e225fee26c6"
 uuid = "14d82f49-176c-5ed1-bb49-ad3f5cbd8c74"
-version = "0.1.0+0"
+version = "0.1.0+1"
 
 [[Xorg_libxcb_jll]]
 deps = ["Libdl", "Pkg", "XSLT_jll", "Xorg_libXau_jll", "Xorg_libXdmcp_jll", "Xorg_libpthread_stubs_jll", "Xorg_util_macros_jll", "Xorg_xcb_proto_jll"]
@@ -767,27 +773,27 @@ version = "1.14.2+0"
 
 [[Xorg_renderproto_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "36dbfa838fc4faf019a6957f2eb8c1b5f31bb500"
+git-tree-sha1 = "ce13e67a75e2e6338500f22af11003823bf189b5"
 uuid = "21e99dc2-7dba-5609-a726-b181bd3bbb6c"
-version = "0.11.1+0"
+version = "0.11.1+1"
 
 [[Xorg_util_macros_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "a99f6275c9b2a9862d2cc4e714aad806c2daecc1"
+git-tree-sha1 = "50c9763d05bdc0795a19877bae9274ada3e499d1"
 uuid = "7c09cfe3-afe2-5798-bcc9-d6b7fecfdca5"
-version = "1.19.2+0"
+version = "1.19.2+1"
 
 [[Xorg_xcb_proto_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "1506cde098df4b6dedcc082bf9386a5808ee6dea"
+git-tree-sha1 = "c0817a62c2a53dd97469f1934e32461cedaf400d"
 uuid = "c2e9c405-c068-5e7b-9b35-084fd074cae4"
-version = "1.13.0+0"
+version = "1.13.0+1"
 
 [[Xorg_xextproto_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "0a1da65671cfc3b20926081b668c7dd098dd9c76"
+git-tree-sha1 = "49ac1f9b3f5b775141690a64b40f401527996a76"
 uuid = "d13bc2ba-d276-5c6f-8a1c-29ed04aab5d0"
-version = "7.3.0+0"
+version = "7.3.0+1"
 
 [[Xorg_xineramaproto_jll]]
 deps = ["Libdl", "Pkg"]
@@ -809,21 +815,21 @@ version = "2.27.0+1"
 
 [[Xorg_xproto_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "fdb0d8bae06762e24dade427e7914d199cdd721e"
+git-tree-sha1 = "1528b6cef487b060c47bb5894824f30143489023"
 uuid = "46797783-dccc-5433-be59-056c4bde8513"
-version = "7.0.31+0"
+version = "7.0.31+1"
 
 [[Xorg_xtrans_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "b18f01c3b50be7bde08be131934112db3137f28b"
+git-tree-sha1 = "b6e7d70f5fc9e3fde505539194c8caaab3c40ebf"
 uuid = "c5fb5394-a638-5e4d-96e5-b29de1b5cf10"
-version = "1.4.0+0"
+version = "1.4.0+1"
 
 [[Zlib_jll]]
 deps = ["Libdl", "Pkg"]
-git-tree-sha1 = "fd36a6739e256527287c5444960d0266712cd49e"
+git-tree-sha1 = "2f6c3e15e20e036ee0a0965879b31442b7ec50fa"
 uuid = "83775a58-1f1d-513f-b197-d71354ab007a"
-version = "1.2.11+8"
+version = "1.2.11+9"
 
 [[Zstd_jll]]
 deps = ["Libdl", "Pkg"]
@@ -869,9 +875,9 @@ version = "4.3.0+1"
 
 [[libass_jll]]
 deps = ["Bzip2_jll", "FreeType2_jll", "FriBidi_jll", "Libdl", "Pkg", "Zlib_jll"]
-git-tree-sha1 = "3fd3ea3525f2e3d337c54a52b2ca78a5a272bbf5"
+git-tree-sha1 = "d0259e0624e08ae9ebae16c80257caabc25f2048"
 uuid = "0ac62f75-1d6f-5e53-bd7c-93b484bb37c0"
-version = "0.14.0+0"
+version = "0.14.0+1"
 
 [[libfdk_aac_jll]]
 deps = ["Libdl", "Pkg"]
@@ -881,9 +887,9 @@ version = "0.1.6+1"
 
 [[libpng_jll]]
 deps = ["Libdl", "Pkg", "Zlib_jll"]
-git-tree-sha1 = "30c6baf453f2603faedb846289f955d307ddf3b2"
+git-tree-sha1 = "594cb058723c13941cf463fd09e5859499594f50"
 uuid = "b53b4c65-9356-5827-b1ea-8c7a1a84506f"
-version = "1.6.37+2"
+version = "1.6.37+3"
 
 [[libvorbis_jll]]
 deps = ["Libdl", "Ogg_jll", "Pkg"]
diff --git a/src/doubletank.jl b/src/doubletank.jl
index 64225df696abbd4f1c981c06092b20ca054bfeae..651a63bb04caf76976414acb07340d08839d9ac2 100644
--- a/src/doubletank.jl
+++ b/src/doubletank.jl
@@ -81,14 +81,14 @@ function qu(p, u)
     u*p.α
 end
 
-function control(p::DoubleTankSimulator, u::Number, load::Number, flow::Bool)
+function control(p::DoubleTankSimulator, u::Number, uflow::Bool)
     @unpack a1, a2, g, x, A, h, scale = p
     x *= scale
     #The simulator should operate on physical values but u should be in [0,1]
 
-    u = clamp(u, inputrange(p)[1]...) + load
+    u = clamp(u, inputrange(p)[1]...)
 
-    qut = flow ? a1*sqrt(2*g*x[1]) : 0 #m^3/s
+    qut = uflow ? a1*sqrt(2*g*x[1]) : 0 #m^3/s
     dA1 = qu(p,u) - qut #m^3/s
 
     if -dA1*h>x[1]*A
diff --git a/src/tankdemo.jl b/src/tankdemo.jl
index 9ad96608d03611ce84c0a386178f6b75098ad835..30add6a2227b96268feb95b9e20ffb989fb335d9 100644
--- a/src/tankdemo.jl
+++ b/src/tankdemo.jl
@@ -24,14 +24,14 @@ function runsimulation(;simulated=true, webservice=true, port=8000, σ = 0.001,
                 n = 2
             end
             onv = Int.([gui[s]=="On" for s in [:pOn, :iOn, :dOn]])
-            load = gui[:load]=="Upper" ? 0.1 : 0
-            flow = gui[:flow]=="None"
+            load = gui[:load]=="On" ? 0.2 : 0
+            uflow = gui[:uflow]=="On"
             rv = pidcontroller(r, y, onv)
             if gui[:mode]=="Automatic"
                 gui[:u] = clamp(round(rv,digits=2), 0, 1) #u's constructor has only a dummy graphic so this is fine
-                control(P, rv, load, flow)
+                control(P, rv-load, uflow)
             elseif gui[:mode]=="Manual"
-                control(P, gui[:u], load, flow)
+                control(P, gui[:u]-load, uflow)
                 #bumpless transfer:
                 if gui[:iOn]=="On"
                     pidcontroller.I = gui[:u]-(pidcontroller.Tot-pidcontroller.I)
@@ -45,12 +45,10 @@ function runsimulation(;simulated=true, webservice=true, port=8000, σ = 0.001,
             push!(gui, pidcontroller.Tot, 6)
             push!(gui, t, 7)
 
-            end_time = time()
-            sleep_time = P.h + start_time - end_time
+            sleep_time = start_time + t - time()
             if sleep_time ≥ 0.001
                 sleep(sleep_time)
             end
-            start_time = end_time
         end
     end
 
diff --git a/src/tankgraphic.jl b/src/tankgraphic.jl
index d139abbf56c76afe158f01faafa8912231dcc4d3..b5873a308f7ef2c1790b5e6eaeae85612600ee82 100644
--- a/src/tankgraphic.jl
+++ b/src/tankgraphic.jl
@@ -34,7 +34,7 @@ function stream(width, height, x, y)
 end
 
 
-function water_container(width, height, fill, x=0, y=0)
+function water_container(width, height, fill, x=0, y=0, flow=true)
     #Produces an SVG water container of size height, width, filled from the
     #bottom to the height fill (as a proportion of height
     fill_level = fill*height
@@ -48,13 +48,13 @@ function water_container(width, height, fill, x=0, y=0)
          svg_rect(width, fill_level, 0, height-fill_level, water_style),
          svg_rect(wall_thickness, height, 0, 0, wall_style),
          svg_rect(wall_thickness, height, width-wall_thickness, 0, wall_style),
-         svg_rect((width-mouth_width)/2, wall_thickness, 0, height-wall_thickness, wall_style),
+         svg_rect((width-mouth_width)/2+!flow*mouth_width, wall_thickness, 0, height-wall_thickness, wall_style),
          svg_rect((width-mouth_width)/2, wall_thickness, (width+mouth_width)/2, height-wall_thickness, wall_style),
          attributes = container_attr)
 end
 
 
-function tank_construct(upper, lower, pump_speed = 1, tnum = 0, r = -1, load = 0, blocked = false)
+function tank_construct(upper, lower, pump_speed = 1, tnum = 0, r = -1, load = 0, uflow = true)
     height = 250
     width  = 200
 
@@ -85,21 +85,20 @@ function tank_construct(upper, lower, pump_speed = 1, tnum = 0, r = -1, load = 0
                           (tank_width/2+pipe_thickness*2, 4*pt)], s_black)
 
 
-    w1 = mouth_width*sqrt(max(0,pump_speed))
-    w2 = blocked ? 0 : mouth_width*sqrt(max(0, upper))
+    w1 = mouth_width*sqrt(max(0,pump_speed-load))
+    w2 = uflow ? mouth_width*sqrt(max(0, upper)) : 0
     w3 = mouth_width*sqrt(max(0, lower))
     w4 = mouth_width*sqrt(max(0, load))
 
-    container1 = water_container(width, height, upper, upper_x, upper_y)
+    container1 = water_container(width, height, upper, upper_x, upper_y, uflow)
     container2 = water_container(width, height, lower, lower_x, lower_y)
 
-
     #The order of svg objects is important, latter elements are laid on top of existing ones
     node(svgsvg_symb, 
          stream(w1, height+50, upper_x+(width-w1)/2, 50)...,
     stream(w2, height+50, upper_x+(width-w2)/2, height+100)...,
     stream(w3, 100, upper_x+(width-w3)/2, 2*height+150)...,
-    stream(w4, height, upper_x, 100)...,
+    stream(w4, 2*height+250, upper_x-20-w4, 0)...,
     container1, container2, redarrow, 
     svg_rect(tank_width, tank_height, tank_x, tank_y),
     pipe,
diff --git a/src/tanklabgui.jl b/src/tanklabgui.jl
index 2169bc0b1f4a7b8e4778cea9df23d740efdff761..aac98b3034b7abf47b202715dd84321b74469bd1 100644
--- a/src/tanklabgui.jl
+++ b/src/tanklabgui.jl
@@ -25,20 +25,20 @@ function makegui(P, run_process, plottingframerate = 10, guiframerate = 10)
 
     #This contains all settings
     w0, dummygraphic2 = @construct for
-        u      in slider(0:0.01:1, label=" um"),
+        u      in slider(0:0.01:1, value=0.1, label="u"),
         #run    in button("Run"), #This should only exist in the simulated version
         #cali   in button("Calibrate"),
-        K      in slider(0:0.1:30, label="K"),
+        K      in slider(0:0.1:30, value=5, label="K"),
         Ti     in slider(0:0.1:30, label="Ti"),
         Td     in slider(0:0.1:30, label="Td"),
-        mode   in togglebuttons(["Manual", "Automatic"], label=""),
-        tankno in togglebuttons(["Upper", "Lower"], label=""),
+        mode   in togglebuttons(["Manual", "Automatic"], label="mode"),
+        tankno in togglebuttons(["Upper", "Lower"], label="tank"),
         pOn    in togglebuttons(["On", "Off"], label="P"),
-        iOn    in togglebuttons(["On", "Off"], label="I"),
-        dOn    in togglebuttons(["On", "Off"], label="D"),
-        load   in togglebuttons(["None", "Upper"], label="load disturbance"),
-        flow   in togglebuttons(["None", "Upper"], label="stop outflow  "),
-        freeze in togglebuttons(["On", "Freeze"], label="plots     "),
+        iOn    in togglebuttons(["On", "Off"], index=2, label="I"),
+        dOn    in togglebuttons(["On", "Off"], index=2, label="D"),
+        load   in togglebuttons(["On", "Off"], index=2, label="load disturbance"),
+        uflow  in togglebuttons(["On", "Off"], label="upper outflow"),
+        plotset in togglebuttons(["Follow", "Freeze"], label="plot setting"),
         #expcsv in button("Export Data"),
         rbox   in textbox("0.5", label="r")
 
@@ -65,10 +65,12 @@ function makegui(P, run_process, plottingframerate = 10, guiframerate = 10)
 
         if observe(tankno)[] == "Upper"
             tankg = tank_construct(measure(P)..., observe(u)[]*ptfr, 1, observe(r).val, 
-                                   observe(load)[] == "Upper" ? 0.1*ptfr : 0, observe(flow)[] == "Upper")
+                                   observe(load)[] == "On" ? 0.2*ptfr : 0, 
+                                   observe(uflow)[] == "On")
         elseif observe(tankno)[] == "Lower"
             tankg = tank_construct(measure(P)..., observe(u)[]*ptfr, 2, observe(r).val, 
-                                   observe(load)[] == "Upper" ? 0.1*ptfr : 0, observe(flow)[] == "Upper")
+                                   observe(load)[] == "On" ? 0.2*ptfr : 0, 
+                                   observe(uflow)[] == "On")
         end
         Node(:div, tankg, id="tanks", attributes=tankattr)
     end
@@ -101,8 +103,8 @@ function makegui(P, run_process, plottingframerate = 10, guiframerate = 10)
         end
     end
 
-    on(observe(freeze)) do val
-        if val=="On"
+    on(observe(plotset)) do val
+        if val=="Follow"
             plotfreeze = -1
         else
             plotfreeze = length(gui.data[1])
@@ -144,8 +146,8 @@ function makegui(P, run_process, plottingframerate = 10, guiframerate = 10)
     settings_element = setindex_(settings_element, i_element, 6, 1)
     settings_element = setindex_(settings_element, d_element, 7, 1)
     settings_element = setindex_(settings_element, dom"div"(gui.widgets[:load]), 8, 1)
-    settings_element = setindex_(settings_element, dom"div"(gui.widgets[:flow]), 9, 1)
-    settings_element = setindex_(settings_element, dom"div"(gui.widgets[:freeze]), 10, 1)
+    settings_element = setindex_(settings_element, dom"div"(gui.widgets[:uflow]), 9, 1)
+    settings_element = setindex_(settings_element, dom"div"(gui.widgets[:plotset]), 10, 1)
 
     layout = setindex_(layout, graphic2, 1, 1)
     layout = setindex_(layout, Node(:div, graphic1, dummygraphic1, dummygraphic2,