Looking for a bit of advice as I'm currently in the process of doing our bathroom and as part we've decided to move the soil stack to make better use of the space. The new stack drops from the side wall just next to the main sewer line which runs the length of the house. This is a 6" clay pipe which I've received permission to branch into, subject to an inspection once the work is complete.
Having already excavated down to the main sewer, my intention is to install a rest bend at the bottom of the stack, starting at ground level. I'll branch into the sewer using a 45 degree clay saddle and then convert this to 110mm PVC using a flexi coupler. Then the part I'm having trouble getting right: joining the coupler to the rest bend.
Because the sewer line is very close to the base of the soil stack, and approximately 1ft below where the rest bend would finish, my original thought had been to use a second 87.5 degree bend immediately after the rest bend, positioned sidewards at an approximate 45 degree angle, where it would connect into the flexible adaptor, using a short length of pipe to achieve the depth. My queries are:
1. Is there a problem having a second bend immediately after the rest bend and,
2. Would the 45 degree angle leading into the clay saddle have a sufficient gradient, if it is only over a very short distance of 1-2ft?
3. Is there a simpler solution, or am I just overthinking this?
I've attached a couple of diagrams to illustrate what I mean.
Any thoughts or comments most appreciated!
Having already excavated down to the main sewer, my intention is to install a rest bend at the bottom of the stack, starting at ground level. I'll branch into the sewer using a 45 degree clay saddle and then convert this to 110mm PVC using a flexi coupler. Then the part I'm having trouble getting right: joining the coupler to the rest bend.
Because the sewer line is very close to the base of the soil stack, and approximately 1ft below where the rest bend would finish, my original thought had been to use a second 87.5 degree bend immediately after the rest bend, positioned sidewards at an approximate 45 degree angle, where it would connect into the flexible adaptor, using a short length of pipe to achieve the depth. My queries are:
1. Is there a problem having a second bend immediately after the rest bend and,
2. Would the 45 degree angle leading into the clay saddle have a sufficient gradient, if it is only over a very short distance of 1-2ft?
3. Is there a simpler solution, or am I just overthinking this?
I've attached a couple of diagrams to illustrate what I mean.
Any thoughts or comments most appreciated!
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