e TANK-PRO Change History
10th February 2025 1 - 1 - 16 Automatic Link to Web based currency exchange added
If a currency other than £ is selected the exchange rate and cost factor are displayed at top of page.
H and Rebar Ranges can now be diplayed on Reduced View
Free Top Min Wall Base fixity % guidance added
Free Top Min Wall Base fixity is now variable from 100% at L / Ht >= 3.0 to 70% at L / Ht <= 1.5
26th January 2025 1 - 1 - 15 Updated to improve usability with deep tanks and caissons
Rebar ranges can now be defined separately for Roof, Wall Horizontal, Wall Vertical & Base
Euro rates and overall costs are now included
Currency type is now adjustable next to the Design Code
1st January 2025 1 - 1 - 14 Layout Improved.  Formatting Improved.
9th December 2024 1 - 1 - 13 XC Exposure cover values updated
XD and XS exposure categories now included
Parameters now include option to vary Permitted Deviation and Exposure categoriesfor individual locations
Layout improved
31st May 2024 1 - 1 - 12 Uplift calculation revised to read manual thickness correctly.
23rd May 2024 1 - 1 - 11 Side of Page Moment Diagrams are now retained if diagrams are removed from Reinforcement Layouts.
Vertical Upper Span Moments adjusted to be 50% of maximum span moments.
Horizontal Moments in Oxidation Wall L adjusted.
15th May 2024 1 - 1 - 10 User can now manually override the automatic Design Forces and use values from another analysis.
Program will then use these values with either manual H or automatic H and then display the reinforcement.
User can now also override the automatic reinforcement values.
The blue Automatic values are replaced with the manual values and the heading is changed from Auto to Used.
The blue Used values display can also be swiched off to display the green manual values only for clarity.
The links to the automatic eTank values are not lost as they are kept off the visible sheet.
These options must be used with care as changing them will mean the design is no longer self validated via eTank.
This enables the program to act as a quantities calculator for designs undertaken separately from eTank.
Resetting Forces and / or Reinforcement back to Auto will restore the automatic eTank design.
12th May 2024 1 - 1 - 9 Moment Diagrams added to side of page
Display Options are now Detailed and Reduced
3rd May 2024 1 - 1 - 8 Tank Page simplified to allow 2 entry options.
Detailed - Shows all of the usual Tank design criteria but requires some engineering knowledge to edit.
Default - Is based on the detailed criteria but only displays the key Tank geometry.
The Default option is simpler to use and is aimed at non-technical and first time users.
When Manual H input is selected, the Auto H values still display in regular type as a guide / comparison.
Red Alerts display if the tops of walls are shown as hinged if there is no roof.
29th January 2024 1 - 1 - 7 File size reduced by removing unnecessary legacy HACI-PRO content.
XLSPadlock protection system introduced.
21st January 2024 1 - 1 - 6 Allows the use of 2 exposure categories and their associated cover requirements.
Such as XC4 for an internal wall face and XC2 for external face of a buried wall or base slab.
19th January 2024 1 - 1 - 5 Includes Irish National Annex to EN 106 Exposure Classes XA1, XA2 & XA3
Displays compliant mixes to above in accordance with table NA.7
Allows use of Irish NA design with BS8500-1-2015 only as new 2023 composite mixes are not covered in NA.
15th January 2024 1 - 1 - 4 Auto Circular Tank thickness calculation routine improved.
It is now based on the vertical actions only.
Span and Edge moments modified for circular conical base slabs connected to walls.
T1 can be now calculated for bases over 2250 thick - useful in caissons.
Base T1 and Wall T1 are displayed below the chosen concrete mix.
γG;destabilising and γG;stabilising can be defined on the Tank tab - defaults are 1.1 and 0.9
Uplift Factor Of Safety display now has a Note confirming it is the Unfactored value.
Uplift Factor Of Safety will display Red if < γG;destabilising  /  γG;stabilising
Parameters tab now shows that Roof Slab H is determined by span / depth rules.
Comment Notes updated.
7th January 2024 1 - 1 - 3 Design Chemical (DC) Class Mix requirements added.
Composite Mix Options added.
Mix guidance added.
3rd January 2024 1 - 1 - 2 Design Option to BS8500-1-2023 added.
Exposure Category added to Tank tab.
PC+SR option added.
Plain Round Mild Steel bars option added to allow check on old tanks.
8th September 2023 1 - 1 - 1 Minor changes - Revision ref is unchanged - just the date
31st August 2023 1 - 1 - 1 PRO Version Launched
Allows use of EC2 2023
Allows use of shear legs