DIY Doctor UK DIY Forums

aquamech

Hi bought some shock arrestors (1/2 inch BSP x 6 inch long). Fitted in the system as per the instruction.Eleviated most of the hammer but the plastic pipe still moved at the fittings. Stripped it all out and replaced with copper. Now ok. I will ring Polypipe and see what they say.

aquamech

Hi, I have added a small bathroom and get knocking for a couple of secs when the taps are closed (lever action mixer on bath and sink). The hot water although low pressure and low flow is the worse. I have connected in to the existing copper pipes with Polypipe. approx 4m under the floor boards, 600...

aquamech

Hi, I am a Mechanical Engineer not a plumber who may have a special adaptor. 15mm compression to 1/2 male BSP fitting. What you do next depends on the fitting on the delivery side of your pump. If BSP ,get the correct 1/2 to ???? adaptor. Or you can get an 1/2 BSP hose tail. I would not want to pump...

aquamech

My mum lives in a row of attached houses. The next door neighbor has receintly had an electric isolating valve fitted to make it easier to shut off the supply in an emergency. When their washing m/c or dishwasher are operating the pipes start banging. Both neighbors have complained but the offending...

aquamech

There is an adaptor available 1/2 NB lead to 25mm MDPE. I would only recommed it as a temorary fix. Why not do the job correctly and have the new plastic pipe connected direct to the service main. You will need a plumber approved by your water supplier to do this. It should not cost to much if you d...

Project Type A - E

Project Type F - G

Project Type G - J

Project Type M - P

Project Type R - T

Useful Tips

Search found 5 matches

Knocking in plastic pipe

electric isolation valve

Main navigation

Search found 5 matches

Knocking in plastic pipe

electric isolation valve