BATH TRAP

[patsy]

HI,HAD A NEW BATH FITTED LAST YEAR BUT NEVER BEEN ABLE TO HAVE THE PANELS FITTED AS THE BATH WAS TOO HIGH BECAUSE OF THE WASTE TRAP.A RELATIVE HAS SAID HE WILL FIT A SHALLOW TRAP .WE BOUGHT THIS BUT IVE NOW READ THAT ITS RECCOMENDED ONLY FOR BATH ON THE GROUND FLOOR.WHY NOT FIRST FLOOR,WHAT WILL HAPPEN IF WE FIT IT .ANY HELP APPRECIATED.

 

[kevplumb]

1 TURN CAPS LOCK OFF

2 what is the waste connected to or where does it go

 

[doitall]

Its connected to the Bath Kev

Reason for not using them upstairs is he depth of the seal.

 

[ChrisR]

Shallow bath traps can "pull" ie the water can get sucked out - but it depends on how long the waste pipes are etc.
There is a long bath trap with an effective 75mm seal even though it isn't that deep, also with air admittance valves to stop syphoning:

 

[kevplumb]

i was always told you cant use them if the waste runs into the stack

 

[ChrisR]

Can't use wot

 

[kevplumb]

shallow seal traps sorry chris crossed post

 

[patsy]

hi, not sure what "stack" means, or how long which pipe is. please would you look at this photo and let me know if you need any more info, thanks

http://i7.photobucket.com/albums/y290/DomLee/P1010002.jpg

 

[Bahco]

You seem to have 2 appliances connected to the same trap and the smaller one looks as if it will not drain away properly.

Suggest you fit a shallow trap and an AAV to let air in to protect against loss of seal, and reroute the other pipe so it drains away as water will not flow uphill.

 

[kevplumb]

the grey one is an overflow running into the trap

 

[patsy]

the wc overflow runs in there at the moment though i have been told he can do away with that and just run it in to the pipe on the wall.what is an aav.

 

[kevplumb]

air admittance valve as in chrisr suggested

btw the overflow should discharge where it is visible

 

[patsy]

thanks all.where would the aav be fitted.sorry i know nothing.

 

[kevplumb]

if you look as chrisrs pic it is the little box bit on the outlet

the outlet is the top bit