3/4" lead to ?

[MattFR]

I have a 3/4" bore lead water supply pipe. I have cut it back to where it enters the house. I wish to feed my house system via a whole house water filter, including the combi boiler. The static pressure is just under 4 bar. Should I use 22mm pipe to and from the whole house filter? I also wish to T off an unfiltered supply for the toilets and garden, should I T off in 15mm before the filter?. The filter suppliers say I need to get a qualified plumber to fit it, but even if I do, I need to lay in the pipes before I get to that stage. Advice welcome. Thanks. Matt

 

[Jackrae]

Why not remove the entire length of lead supply and replace with MDPE. That way you eliminate future problems of lead in your drinking water.

 

[MattFR]

I would but it involved digging up a lot of concrete and connecting to the water main. Would have to pay the supply company to do it. The filter is for chlorine and other pollutants. Matt

 

[Jackrae]

Some service companies will run a new supply line using a mole technique which doesn't involve trench digging - apart from the start and finish ends.

 

[MattFR]

I may check out the cost of that, thanks. I would still like to know what to do if I'm stuck with the lead. M

 

[Jackrae]

Use a philmac or similar connector

 

[vinn]

MattFR,
its possible to abandon the lead and then part trench & part drive a long steel under any concrete path or driveway at the most convenient position.
MDPE can then be snaked through the opening/tunnel.
No mole machinery necessary.