The drains from my house are fine, not blocked (checked and rodded to make sure and watched water flow easily) but the first bit of the drain is the drain from my kitchen sink and bath. It goes into a sort of vertical hole, which is fine but appears to go into the main drain via an opening half way up the side. It keeps blocking at this end, the water beyond is fine and rodding from the main drain to the opening (i.e. back up the system) is also fine. Plunging the rods etc. up and down seems to clear the drain for a while but then it slowly seems to block again. Am I right in assuming that leaves or debris have dropped down the grating and have started to form a surface blockage that blocks the opening and so i will need to somehow reach the sludge at the bottom and get it out? i did once see some sort of spade/scoop that enables you to do this but i can't find it online. It's only grey water coming out of the drain but even so I am not keen on putting my arm down the hole to fish out sludge or decomposing leaves. Is there some thing i could buy to scoop the stuff out rather like getting water out of a well?
Sorry, question a bit involved but i didn't want you thinking it was a typical blocked horizontal drain. I can do them!
Janet