Skip to Main Content
Drainage Design Focus Group Ideas Portal
ADD A NEW IDEA

All ideas

Showing 91 of 91

Highlight if the Colebrook-White or the Manning's equations is being used by highlighting (or greying out) the "ks (mm)" or "n" in the link details.

It seems that if a pipe has a swale upstream then the pipe uses the Manning's equations to compute flows etc, but if it has nothing upstream or a pipe upsteam then it uses the Colebrook-White equations. This means that on the same storm water syst...
Guest 3 months ago in  0 📋Registered

Infiltration Half Drain time calculations

We have recently been challenged by Wiltshire LLFA regarding half drain times. As I understand it, Flow calculates the half drain time to CIRIA 156 which gives a significantly longer half drain time than the BRE365 method that Micro Drainage uses....
Guest 8 months ago in  1 👷🏽‍♀️Promoted

Chainage, pipe bedding and cover grade information in long section exports

Add chainage, pipe bedding and node cover grade information as options for long section outputs. These are standard requirements for a lot of water authorities so would prevent manual changes being required to allow these outputs to be included.
Guest about 2 months ago in  0 📋Registered

Add Urban Creep locally for each area/catchment

This is especially applicable now given some areas may have 100% impermeable while other will have greenfield with a possible option to turn to impermeable. Users can also adjust Cv value locally. The design report should contain the new additions.
Tom Fox almost 2 years ago in  0 👷🏽‍♀️Promoted

Separating Flow Design Reports - Ability to split large flow networks into phased design reports.

There is a requirement to be able to produce design reports for separate sections of a larger Flow network when working on multi-phase developments.
Guest 5 months ago in  0 👷🏽‍♀️Promoted

Manhole Schedule Degree Reference

We’ve noticed a significant increase in the use of precast manholes across nearly every development we’re involved in. The companies supplying these typically issue drawings where each incoming pipe is referenced by its angle relative to the outgo...
Guest 2 months ago in  0 📋Registered

Ability to renumber and reorder design locked nodes and pipes.

No description provided
Tom Fox almost 2 years ago in  0 👷🏽‍♀️Promoted

Quick Storage Calculations For Soakaways Without The Use Of The Base

When looking at the preliminary quick storage calculations used for preliminary designs/drainage strategies, the quick storage tool is excellent up until the point you want to design soakaways as there is no option to get a quick storage calculati...
Guest 11 months ago in  0 👷🏽‍♀️Promoted

General user interface improvements

Having used Flow now for the last 6 months we feel there are plenty of user interface improvements than can be made. Add the link references in the results? When a link is selected, can the corresponding link on the section be highlight with a col...
Guest about 1 year ago in  0 👷🏽‍♀️Promoted

Depth to Soffit on Manhole Types

Within Flow, I believe that we have found something where a feature could be slightly amended to aid some standard design processes. Currently, within “MH types”, there is a section where standard/minimum manhole diameters can be set by depth. We ...
Guest 3 months ago in  0 📋Registered