We've recently had a new bath installed (& turned around), due to the
way the waste is located the plumber installed a shallow waste trap
(which is cut into the floor) followed by a series of slightly sloping
bends before it reaches the old pipe which connects to the outside
main waste down pipe.

The old waste pipe, which goes through the outside wall, is higher
than sloped waste from the bath. The plumber decided to elbow this up.
He said this wouldn't be a problem as the water would push the waste
water through, but the sloping part would always contain water.

The problem we have is the drainage from the bath isn't very quick.
Having a shower can cause water to remain in the bath before slowly
draining away.

I've read about these hepVo traps being used in places where space is
tight. Would this help with our slow drainage problems if I elbowed
straight from the waste of the bath to the hepVo then slope to the
outgoing pipe?

TIA

Dave

Dave wrote:
We've recently had a new bath installed (& turned around), due to the
way the waste is located the plumber installed a shallow waste trap
(which is cut into the floor) followed by a series of slightly sloping
bends before it reaches the old pipe which connects to the outside
main waste down pipe.

The old waste pipe, which goes through the outside wall, is higher
than sloped waste from the bath. The plumber decided to elbow this up.
He said this wouldn't be a problem as the water would push the waste
water through, but the sloping part would always contain water.

The problem we have is the drainage from the bath isn't very quick.
Having a shower can cause water to remain in the bath before slowly
draining away.

I've read about these hepVo traps being used in places where space is
tight. Would this help with our slow drainage problems if I elbowed
straight from the waste of the bath to the hepVo then slope to the
outgoing pipe?

--
You didn't have a plumber - you had an idiot. For a start, that pipe
will end up 'silted' up.

The HepVO can allow a terrific stream through - we have the fastest
emptying bath I know. However, as I read your description, unless you
can get all the pipe sloping downwards (to where it goes through the
wall) you will continue to have a problem.

There seem to be two possibilities. 1) Raise the bath. 2) Lower the
level of the waste through the wall.

--
Rod

On 21 May 2007 06:38:22 -0700, Dave wrote:

We've recently had a new bath installed (& turned around), due to the
way the waste is located the plumber installed a shallow waste trap
(which is cut into the floor) followed by a series of slightly sloping
bends before it reaches the old pipe which connects to the outside
main waste down pipe.

Are you sure you have a shallow waste trap? I cannot see how a bath could
be mounted so low as to need a cut in the floor with that fitted.

Steve

Are you sure you have a shallow waste trap? I cannot see how a bath could
be mounted so low as to need a cut in the floor with that fitted.

Steve

Yes, it is a shallow trap. The hole in the floor was already there
from a bodge of a previous plumber. I think my option will be to core
drill a new hole lower down the wall so that it all drains off rather
than being forced up and out of the current pipe.

We had a leak from the trap yesterday, where I found the trap wasn't
sealed properly due to the way the pipes had been laid (should have
done the job myself!), and no PTFE tape on the waste connector!
Getting it to pieces was a mission as the whole of the pipework was
full of water (as you would expect).

The HepVo traps, are there any limitations on where they can be placed
along the waste, e.g. would I need to elbow off the bath waste then
immediately insert the HepVo trap?

Cheers

Dave

"Steve" wrote


Are you sure you have a shallow waste trap? I cannot see how a bath could
be mounted so low as to need a cut in the floor with that fitted.


Deeper baths do have the outlet close to floor level and rely on waste
piping, trap etc being (at least partly) within the depth of the floor.
If the joists run parallel to the length of the bath then this is quite
do-able, with the waste running below floor level then straight out through
the facing wall.
Raising the bath sufficient to allow room for trap and pipe work would make
getting in and out difficult (without raising the surrounding floor).

Phil

On 22 May, 08:32, Dave wrote:

The HepVo traps, are there any limitations on where they can be placed
along the waste, e.g. would I need to elbow off the bath waste then
immediately insert the HepVo trap?

They can be fitted inline along the run.

The following design guide should be of use:

http://content.wavin.com/WAXHW.NSF/pages/PDF_HepVOTechDesignEN/$FILE/HepvOTDG.pdf

(or http://tinyurl.com/2hr3wh)

Mathew

They can be fitted inline along the run.

The following design guide should be of use:

http://content.wavin.com/WAXHW.NSF/pages/PDF_HepVOTechDesignEN/$FILE/...

(orhttp://tinyurl.com/2hr3wh)

Mathew

Thanks Matthew. If I'm fitting it straight off an elbow/knuckle
connector from the waste, how can I try and get the thing to slope
down without putting pressure on the knuckle around the waste? I'm
thinking that putting the hepVo on wouldn't give me much drainage
away.

Dave

On 2007-05-22 23:46:09 +0100, Dave said:

They can be fitted inline along the run.

The following design guide should be of use:

http://content.wavin.com/WAXHW.NSF/pages/PDF_HepVOTechDesignEN/$FILE/...

(orhttp://tinyurl.com/2hr3wh)

Mathew

Thanks Matthew. If I'm fitting it straight off an elbow/knuckle
connector from the waste, how can I try and get the thing to slope
down without putting pressure on the knuckle around the waste? I'm
thinking that putting the hepVo on wouldn't give me much drainage
away.

Dave

The HepVO elbow is 92.5 degrees so that the slope is achieved. It
does work because I have done it.

Two things to note though

- If you don't have enough depth below the bath and there is much of a
length of pipe, you can end up bringing the pipe back to being
horizontal and then you will have a reduction in draining.

- Do make sure that you get the orientation of the trap correct as
viewed from the side - outlet and ribs to the bottom.

The HepVO elbow is 92.5 degrees so that the slope is achieved. It
does work because I have done it.

Two things to note though

- If you don't have enough depth below the bath and there is much of a
length of pipe, you can end up bringing the pipe back to being
horizontal and then you will have a reduction in draining.

- Do make sure that you get the orientation of the trap correct as
viewed from the side - outlet and ribs to the bottom.

Andy, glad to hear someone has used one of these HepVo traps. The
length of the pipe is approx. 2 metres. So I'm not going to get much
of a slope (problem with bath being turned around). Thanks for the tip
about the ribs being at the bottom!

Cheers

Dave

On 2007-05-23 14:56:03 +0100, Dave said:

The HepVO elbow is 92.5 degrees so that the slope is achieved. It
does work because I have done it.

Two things to note though

- If you don't have enough depth below the bath and there is much of a
length of pipe, you can end up bringing the pipe back to being
horizontal and then you will have a reduction in draining.

- Do make sure that you get the orientation of the trap correct as
viewed from the side - outlet and ribs to the bottom.

Andy, glad to hear someone has used one of these HepVo traps. The
length of the pipe is approx. 2 metres. So I'm not going to get much
of a slope (problem with bath being turned around). Thanks for the tip
about the ribs being at the bottom!

Cheers

Dave

Would it be realistic to raise the bath a little?

On Tue, 22 May 2007 00:32:04 -0700, Dave wrote:

...and no PTFE tape on the waste connector!

so at least one thing done right then


--
John Stumbles

I've got nothing against racists - I just wouldn't want my daughter to marry one