Anti vac trap

[townfanjon]

Evening chaps , never done this and it's all going behind a long wet wall.
A nats over 3 meters long horizontal soil pipe what has a ok 'fall' joints an internal soil pipe.
On the run are 2 toilets and 2 basins, rather than run 2 separate basin wastes all the way back to the soil pipe.
Can I use 2 anti vac traps on the basins and just use 2 strap on boss's with 2 short lengths of waste straight in to the pipe.
Thank you

 

[Ch4 plumbing]

Just use normal traps and In large the waste to either 1"1/2 or 2" depending on the actual length.

 

[josh]

When we do this we use antivac traps, stops the other gurgling when one basin is let go, cheaper than using hepvo's to. As said upsize it to 1 1/2'' waste pipe to.

 

[Ermintrude]

50mm wastes come on boys.... I would also run a 32mm vent back to the stack from an years facing tee between the sinks .

Worked for 100 years before fanny traps and anti symphonic

 

[solutions]

50mm wastes come on boys.... I would also run a 32mm vent back to the stack from an years facing tee between the sinks .

Worked for 100 years before fanny traps and anti symphonic

From an years facing tee?

 

[townfanjon]

50mm wastes come on boys.... I would also run a 32mm vent back to the stack from an years facing tee between the sinks .

Worked for 100 years before fanny traps and anti symphonic

Nah I am trying to do away with a wall full of pipes.LOL

 

[Ermintrude]

Sorry years = upward facing tee. One too many cold fizzy drinks

 

[townfanjon]

cold beers more like

 

[rpm]

Depends what else was in the fizzy drink, something a little more hard core?

 

[josh]

50mm wastes come on boys.... I would also run a 32mm vent back to the stack from an years facing tee between the sinks .

Worked for 100 years before fanny traps and anti symphonic

50mm is oversized for two basins in a domestic property? Have fun chopping that in the wall!

 

[Ermintrude]

Depends on length of run and fall

 

[townfanjon]

just checking chaps, by memory, 20mm minimum fall per meter.