Drainage Tank Water Level Calc

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Everyone
10+
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Everyone
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About this app

【Description】
​Plumbing Drainage Tank Water Level Calculator | Building Services & Pit Volume Inverse Calculation Tool
​[Overview]
"Plumbing Drainage Tank Water Level Calculator" is an inverse calculation app that determines the required water level based on the desired effective water volume. It accurately streamlines the structural calculations of drainage tanks, which are highly complex to calculate manually due to pit slopes (truncated square pyramids) and footings.

[Problems It Solves]
​Inverse calculation of water level from volume: When there are sloped sections such as truncated square pyramids, calculating the water level backward from the water volume is extremely difficult by hand.
​Complex volume deduction: When volume deduction is required due to the presence of footings, the calculation process becomes exceptionally complicated.

[Main Features]
​Accurate Water Level Inverse Calculation from Volume
Simply enter the required effective water volume, and the app automatically calculates (back-calculates) the corresponding water level.
​Support for Complex Shapes and Slopes
Supports calculation for truncated square pyramid shapes (pit slopes), where calculations are difficult unless the height is fixed. It accurately processes a three-tier structure consisting of the sump pit, sloped section, and wall section.
​Automatic Support for Footings (Volume Deduction)
Accurately deducts the volume reduction caused by footings (foundation widening), which makes manual calculation highly difficult, based on the entered geometry.
​High-Precision Calculation Algorithm
Utilizes a repetitive calculation process with a binary search algorithm to deliver results with an extremely high accuracy within a calculation error of +/-0.5mm.
​3D Preview Feature
Visually reproduces the 3D geometry of the drainage tank and the calculated water surface height based on the entered dimensions.

​[About the Trial Period]
​This application includes a 30-day free trial period. During this period, you can try all features without any restrictions.
​After the trial period ends, the features will be locked, but you can continue using the app by updating to the premium version within the app.

[Disclaimer]
While every effort has been made to ensure the accuracy of the calculation results, its correctness or reliability is not guaranteed. The developer assumes no responsibility for any damages resulting from the use of this application. Final design, review, and judgment must be made at the user's own responsibility.
Updated on
Jul 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
Personal info and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

What’s new

Updated the contact link.
Content rating
Everyone
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App support

About the developer
大澤広明
ratel.okottel@gmail.com
花見川区幕張本郷4丁目2−23 ラシュレ 203 千葉市, 千葉県 262-0033 Japan

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