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Posted: Thu Aug 04, 2016 10:49 am
by Dave65
I'm laying a perforated drain behind a new retaining wall. The local authority tells me that the connection to the domestic drainage (combined system) must be via a silt trap, which seems reasonable.
The problem is, where can I get a silt trap? I've scoured the internet and not found one.
Any help much appreciated.
Thanks
Dave
Posted: Thu Aug 04, 2016 11:50 am
by seanandruby
Make one. Look under catch pit.
Posted: Thu Aug 04, 2016 3:10 pm
by lutonlagerlout
did you google silt trap?
1st apge
look for p-trap or sump unit
cheers LLL 
Posted: Thu Aug 04, 2016 4:06 pm
by Dave65
Thanks...
The thing with a P trap is, how does one periodically clear out the silt?
Dave
Posted: Thu Aug 04, 2016 7:12 pm
by seanandruby
Shove your hand in ( with rubber gloves ) and dog it out. How deep will it be?
Posted: Thu Aug 04, 2016 7:33 pm
by Dave65
Not sure how sticking your hand in would work as one side of the trap would be connected to the perforated drain and the other to the rest of the system... nowhere for the hand to gain access (as well as it being underground)
Posted: Fri Aug 05, 2016 10:04 am
by Tony McC
There's two diagrams showing how to construct a catch-pit or silt trap on this page