Hints & Tips
I hope that I can pass on some of my experiences, and findings about how to do things from both sides of the channel, in this posting, also other plumbers will pass on their hints and tips, so we all can share
The first one is about poly water mains laid in the ground, this is in the UK, a couple of times I have had to try and trace a leak in half a mile long water mains laid across fields, every time the leak was caused by the poly rubbing on a sharp stone, if the main had been laid in a plastic conduit, this wouldn't have happened
Plaster block walls; made out of solid plaster blocks, an old idea, but you might still come across them in old houses; to get a good fixing, the French chop out a pocket in the plaster wall, then get a piece of wood about 25mm thick and a bit smaller than the pocket, they drive a fair few nails into the edge of the wood, and using plaster of paris or a mixture of plaster of paris and plaster board adhesive, bed the wood block into the pocket so that it is just below the surface of the wall, then they "flush off" the pocket with plaster, this makes a solid fixing
Powder, Plaster board adhesive, if its anything like the French stuff, is a very good all round filler, its a bit slow to set, an hour or so, and has got a bit of "stickiness" to it, and also finishes of nice and smooth
To get a cement joint to "go off" quicker, you can add a bit of plaster to the mix, or use dissolved washing soda in the water to get a quick set
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