Skip to Main Content
Design Ideas Portal
Product Flow
Created by Steve Doughty
Created on Jul 11, 2024

Time to half empty Calculations

I have a request regards time to half empty of infiltration systems.

Irrespective of what I set in the preference page (whether time to half empty by volume or by storm) I just get time to half empty of the structure.

That isn’t very useful information.

I spent a bit of time today (too much really) running various storms and adjusting the depth of a soakaway for each one so as to get the time to half empty for each individual storm (much more useful information) and produced the table replicated below:

Storm

Depth of water

Half drain time

1:10 year

1.165m

1,558 minutes

(26 hours)

1:30 year

1.623m

1,910 minutes

(32 hours)

1:30 +35%

2.282m

2,289 minutes

(38 hours)

1:100 year

2.359m

2,326 minutes

(39 hours)

1:100 +45%

2.724m

2,662 minutes

(44 hours)

This would be an excellent addition to Flow.

The time to half empty based on the depth of water for each storm in a soakaway.

(and would save an awful lot of time messing around with multiple models)

Is this something that can be added to the flow wishlist?

  • Attach files