Search results

Ok, Firstly, thanks for all the help. So, I finally sorted it. And like most problems, the solution was very very simple, it just took some finding. I tried putting in an anti siphon loop in the loft. It did very little. So then I just swapped the vertical drop from the loft to the waste...

Then that's what I'll do. Thanks for all your help mate.

Nice. one. Where do I get an Anti Siphon Loop?

Unfortunately not. The original soil stack is on the other side of the house where the original bathroom was. Thanks for the Grundfos email. I'll be interested to hear what they have to say. I did call them, but the woman I managed to get through to just said it would cost £150 callout before...

Thanks for all the suggestions. I'm gonna try just increasing the pipe bore first. No idea who originally fitted the thing, but 22mm copper pipe wasn't really a good plan was it? Cheers.

The model is a Sololift WC. After it's pumped the water away as it should, leaving some in the macerator, there's a couple of seconds pause and all the water rushes out of the thing by itself, leaving it empty and airlocked. Siphoning. So the next time it tries to pump, it runs for ages but...

ok... I have a Grundfos macerator, a replacement for an old unit which conked out recently, but never worked properly because, I think of a siphoning issue. (the pump runs right about 50% of the time, but afterwards, all the water rushes out, leaving it empty so it can't run right the next...

I need to fit an air admittance valve at the top of the pipework of a Grundfos macerator, because it's syphoning and buggering up the system. But the current pipework is 22mm, and I can only find 32mm valves. The outlet on the macerator is 22mm, so I need to enlarge the pipe to fit the valve in...

Yes, plastic to copper. Those bits should do it. Cheers!

it's defnitely syphoning. how do I stop it? Cheers.

Looking to connect a 22mm pipe to a 32mm pipe and i can;t find a suitable reducer anywhere. Any ideas?

The drop from the loft doesn't go into the main soil stack, it goes into another inlet to the main waste done specifically for the bathroom (moved from the original one which has been sealed and is too far to get to.) They really did a strange job on this originally, but I wasn't here then. The...

Not sure if this is the right place to post this, so sorry if it's not. I've had a grundfos macerator in my bathrrom since just after I moved in (about 5 years.) It's never worked right, and it eventually went kaput last week. So I replaced it with a newer version - a Sololift WC. But I still...