P trap gulley soakaway

[PSC88]

Hi we have just finished Groundworks with a seperate rainwater Soakaway (5 of them!)

 

They all have p trap gulleys below ground level and although building inspector has said he would pass them he commented that they aren’t roddable so would rather have a bend or solution which would be roddable.

 

it will be a considerable expense to have them all changed as there is 14 of them.

 

What would be the advice? We take the hit and change? Any alternatives or are we being overly pedantic with the risk of blockages.

 

benefit of the p trap is

Ultimately prevent odours but is this is a non issue with rainwater as the fouls are seperate

 

thanks