Posted: Mon Sep 06, 2004 4:37 pm
Hi,
I had a bath and WC along side each other in the bathroom. I want to replace bath with Shower tray and move the WC.
Groundfloor - solid floor. If I move the WC I am thinking I could have the waste pipe going straight out throught the wall (rather than digging up the floor in the bathroom and trying to drill a new hole through the "house wall" below ground level).
Presently there is an inspection chamber right out side the bathroom window. Going upstream (in the IC) is a 100mm pipe which goes to a SVP about four feet away. This is about 8 inches away from where the new WC pipe will come through the wall.
Can I connect the WC outflow directly to the SVP, presumably leaving the SVP above this join as it is now?
Having removed the SVP for inspection I have found that below ground level (about 3 - 4 inches) there is a 100 mm pipe elbow, at 'this' end it has an internal diameter of about 110mm, the SVP has a diameter of 110mm also. Above this elbow there is a final covering of concrete about 3-4 inches thick, and at this point above the elbow there is a pipe slot which the SVP went into, this is misalligned (off centre) with the elbow by about 8mm. Presumably I will have to allign the SVP properly with the elbow? I believe it is misalligned because the brackets holding the SVP to the wall hold the SVP off the wall by a specific unadjustable distance, and unfortunatlely this was 8mm away from the elbow below ground.
Assuming you tell me I have to allign the elbow with the SVP properly, how do I then fix the SVP to the wall?
On a more general note, what could the consequences be of removing the SVP (unsightly) altogether? If their function is to allow air to enter and leave the drain system, would this air not just go in and out around the IC covers? I suppose the arguement could be that the IC covers could become sealed with dirt, but I don't see it as being a particularly serious problem not to have an SVP.
Next, is what to do with the shower waste. I will have to dig up the solid floor in the bathroom, and I am thinking the 40mm waste pipe will go through what is the existing WC pipe - through the 'house wall' (below ground level).
My research has led me to believe I will need a "P trap" with a seal depth of 75mm. As the 40mm waste pipe will go directly into the IC through the existing WC pipe. Does this set up sound ok to you? where can I get a P trap with a 75 mm seal depth? the ones I have seen so far (including the one I took off the bath) only have a seal depth of about 8mm - 10mm. Would it matter if when lifting the IC cover you could see the 40mm pipe protruding from the house? How could I do it better?
I had a bath and WC along side each other in the bathroom. I want to replace bath with Shower tray and move the WC.
Groundfloor - solid floor. If I move the WC I am thinking I could have the waste pipe going straight out throught the wall (rather than digging up the floor in the bathroom and trying to drill a new hole through the "house wall" below ground level).
Presently there is an inspection chamber right out side the bathroom window. Going upstream (in the IC) is a 100mm pipe which goes to a SVP about four feet away. This is about 8 inches away from where the new WC pipe will come through the wall.
Can I connect the WC outflow directly to the SVP, presumably leaving the SVP above this join as it is now?
Having removed the SVP for inspection I have found that below ground level (about 3 - 4 inches) there is a 100 mm pipe elbow, at 'this' end it has an internal diameter of about 110mm, the SVP has a diameter of 110mm also. Above this elbow there is a final covering of concrete about 3-4 inches thick, and at this point above the elbow there is a pipe slot which the SVP went into, this is misalligned (off centre) with the elbow by about 8mm. Presumably I will have to allign the SVP properly with the elbow? I believe it is misalligned because the brackets holding the SVP to the wall hold the SVP off the wall by a specific unadjustable distance, and unfortunatlely this was 8mm away from the elbow below ground.
Assuming you tell me I have to allign the elbow with the SVP properly, how do I then fix the SVP to the wall?
On a more general note, what could the consequences be of removing the SVP (unsightly) altogether? If their function is to allow air to enter and leave the drain system, would this air not just go in and out around the IC covers? I suppose the arguement could be that the IC covers could become sealed with dirt, but I don't see it as being a particularly serious problem not to have an SVP.
Next, is what to do with the shower waste. I will have to dig up the solid floor in the bathroom, and I am thinking the 40mm waste pipe will go through what is the existing WC pipe - through the 'house wall' (below ground level).
My research has led me to believe I will need a "P trap" with a seal depth of 75mm. As the 40mm waste pipe will go directly into the IC through the existing WC pipe. Does this set up sound ok to you? where can I get a P trap with a 75 mm seal depth? the ones I have seen so far (including the one I took off the bath) only have a seal depth of about 8mm - 10mm. Would it matter if when lifting the IC cover you could see the 40mm pipe protruding from the house? How could I do it better?