nohitsherloc

Fig-372-Section-of-Loco-Intercepting-Trap.jpg Thanks 40summat, I googled an image of a Windsor trap and it all makes sense now that you have explained it. So the rodding cap had fallen into the exit flow and in combination with the gravel formed the blockage.

Well this is my experience of clearing a blocked outside drain at the last drain on my property being the one that all my other drains feed into. It starts with removing a drain cover and finding deep water and foul waste. The first thing I needed to do was to identify where the water should run out. Now this is where it gets a bit scary, I used a 40 quid vacuum cleaner to suck all the nasty stuff out and stored in large cement bath. With all the crap out of the way I could see where the water should run out. I blasted the exit flow with a jet spray that cleared the rest of the muck and could see that water was flowing slowly through the exit. I could also see that a lot of gravel had accumulated at the exit point, again the vacuum cleaner was used to shift this, and finally I found a large round concrete plug just sat in the exit flow, I could not imagine this was serving any useful purpose so removed that as well. I hope this may be of assistance to someone and if anyone's knows what the concrete plug is doing is my drain then please let me know.