Recent content by advisewelcome

Any opinions? Going across the garage floor kinda worked out. 50mm AAV near fan hole for future access. Strap on for sink and shower waste in garage room. Before you knock it - ensure you was there for me in my time of need :unsure:

Thanks. They didn't mention that in the promo vid. If a 50 mm AAV is installed, it gives the option to use HepVo waterless traps or standard water traps. HepVo traps could work well on the sinks, since access is easy, but the shower drain may be more awkward to fit and harder to maintain — so...

Added the worse case plan to run the 110mm pipe straight across... Revised Plan for New Shower and WC Room Installation 1. Air Admittance Valve (AAV) ○ A 50mm AAV has been indicated as sufficient for ventilation and can be installed behind the new shower stud wall. ○ The stud wall will...

Wish it was. Need a solid plan - will also inform materials needed, only have 1-2 day with resources onsite to make it happen (hence the Anal-retentive planning). I see some things need revision so will post up new plan...

Outline Plan for New Shower and WC Room Installation 1. Air Admittance Valve (AAV) ○ A 50mm AAV has been indicated as sufficient for ventilation and can be installed behind the new shower stud wall. ○ The stud wall will also conceal new shower piping and the existing gas...

Yes can see how it would be same as a boss connection. I just guess any smaller pipe coming out would always have to go upwards to prevent any soil water going into it. HepVO behind the WC? - would consider it with a bit more info if solves the issues. Yes, "Fix it and see" - would make sense...

So the 50mm waste branches can be stap-on connected to the side of the 110mm soil pipe? Doesn't that risk waste getting caught-up on the entry to the 50mm piping, or any bad 50mm-110m connections leaking if the flush water is going past?- whereas if the strap on was at the top - it wouldn't...

Adjustable Bends (Screwfix item 77224 - Floplast Push-Fit 0−90. Concern is that these are undesirable for installation under a stud floor due to possibility of leaking. I think the thin seals in adjustable fittings are prone to fouling, losing elasticity, and leaking from slight movement. Since...

Thanks. I think I can see what you mean... But... -It does depend if a 45 angle would land somewhere near the WC soil outlet - maybe? -There would be more than the normal soil pipe fall - unsure if thats an issue? -Need wastes for shower room sink/shower & WC sink - looks a bit more awkward...

Hi, yes - will try figuring out the connections you suggested. Could you let me know in principle, if the below setups are okay? (1) The AAV does not have to be attached at the start of the Flush to get air in behind the flush? It will work further away from the flush? (in below example the...

Hi ...any chance it can be stated less technically for us simple folk over here?? Are you saying, something like this going to be at the main junction?... Because there obvious issues with the necessity of the stub stack going straight up... As I do not want to move the WC anymore...

OK - will see what can be done. How would the plumbing work to the stub stack? Where would it branch off and how? Have a link to any plumbing parts that would do the branching? Thnks.

Thanks. I think you mentioned a 50mm AAV stub stack behind the WC? If we had to stick to the current WC, the below kind of arrangement is the way to go...? Is a AAV stub along the 110mm pipe just not as effective? That option would mean we don't have to disturb the stud wall currently...

....Probably, but don't know what I don't know. Would really help to know if the below 50mm AAV design is ok in principle? -Does the AAV need to be behind the WC at the start of the water inlet to prevent the vacuum from following the water? -Or can the AAV be close to the flush (0.5m away)...

Hi - lower bend has been there for 40yrs with a WC sitting on top - and no blocks - but I suppose it hasn't had 3 additional wastes (2 sinks and shower) going through it - would that make a difference? Was thinking of putting a maintenance access hatch in the stud floor to get to the shower...