Push Fit Elbows in Plaster - The Dark Web

[andydiynot86]

No matter how hard I look I cant find any topic on this.

Here you will see a RAD flow and return speed sit with some push fit elbows. The Celotex and Screed Is about to go in up to the first breeze block. There are no joins 'below ground' There is a 37.5mm insulated plasterboard about to go over this, I have only chased
it in as the elbow is large and I didn't want to risk it sticking out after plaster.

The board will be dot and dabbed and I was going to cut a clearance hole around the copper tail / pushing fitting then plaster and finally cover the clearance hole with one of those chrome cover caps. we wont dot and dap directly on the elbow, does this sound OK and I understand its not ideal to plaster these in ?

 

[cross thread]

Fine.it’s accessible in the future if needed

 

[Madrab]

It's not no - but they would be accessible, albeit having to cut open the plasterboard to get to them, if they ever leaked. So no biggie.

 

[Lower]

The important thing is to make sure no plaster or adhesive gets on the push fit parts of the fitting. They need a little bit of movement with variations in pressure to allow the o ring to energise and seal. If they’re embedded in rigid plaster they can’t move and that’s when they can start to leak.

 

[andydiynot86]

Thanks this is what I thought. I hear your point about if it ever leaked but you can have the same issue with a copper joint right? I know a sweeping bend would be best but I have a plus 3m run to get up the floor and I know joints in the floor are an even bigger no no.