All ideas

Check dams are commonly used in swales to temporarily pond runoff to increase pollutant retention and infiltration and decrease flow velocity, but Flow does not have an option to model them. As they are a recognised SuDS feature, and commonly used...

There has been an update to FLOW where you know have to go into the storage tab to adjust the porosity, the base coeff, the Side coeff, the surround shape and Diameter. (say for a filter drain) You used to be able to change all of this from the sk...

Is it feasible to look into an option whereby we can specify the height above or below existing ground that the designs should be set? This should allow designers to easily adjust levels to help achieve a cut and fill balance

There is often need to hide certain pipes from the final output. Either they are dummy pipes that have no relation to the final layout or they are areas outside the specific design network that do not need to be included in the report. Microdraina...

Global urban creep isn’t helpful. We have a process of assessing UC on a pipe-by-pipe basis. We separate the areas that UC should be applied to and areas such as flats the highway that don’t need it. If global UC is applied, then you are adding 10...

Add a column called ‘Infiltration Volume’ to the simulation results table which indicates the total volume of water infiltrating into the ground at the upstream manhole during the selected storm.

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.

Always having mass balance issues when utilising flow through structure. It could be something from adding orifice to inlets same size as pipe, lifting/dropping structure slightly increasing/decreasing length of structure, that sorts the issue. Th...

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....

Add a column for manhole cover loading classification on manhole schedule. Required for S104 and construction plans