I have recently installed a downstairs toilet in the space under the stairs. Due to the position of the toilet and the stink pipe (the waste pipe for the upstairs toilet), i decided the go for a macerator.
On the advice of my local plumbers merchant, I installed a Saniplast2. I explained the length and number of corners of the waste outlet of the macerator and he said it should be ok. The length of waste is approximately 10m with corners, a mix of 90 and 45 degree bends, this goes up, along and then down to the stink pipe in the kitchen. The plumbers merchant suggested I didnt use the sharp bends but to use the ones that are more gradual. The waste pipe is 32mm internal diameter. All pipes are buried in the walls.
I finished the tiling just before christmas and today I installed the toilet and sink which leads to my problem. The macerator works great on both the toilet and the sink (although i havent tried a no.2 yet!). The problem is that about 15mins after the last time the macertor pumps, it will pump again. And again after another 15mins, this has continued all evening.
My guess is that the macerator has enough power to push the waste along the pipe and most goes down the stink pipe (i can hear it going into the stink pipe), but not enough power to clear it all and over time the waste left in the pipe is dribbling through the one way valve and back into the macerator.
Is there a more powerful macerator that will do this job properly?
Have I installed some thing wrong or missed something?
Should the one way valve seal properly or is it expected to weep a little water?
One solution I have thought of is to install an occupancy sensor to turn the macerator on and off. Would this be a viable solution plumbing wise?
The toilet systern in not overflowing into the pan
On the advice of my local plumbers merchant, I installed a Saniplast2. I explained the length and number of corners of the waste outlet of the macerator and he said it should be ok. The length of waste is approximately 10m with corners, a mix of 90 and 45 degree bends, this goes up, along and then down to the stink pipe in the kitchen. The plumbers merchant suggested I didnt use the sharp bends but to use the ones that are more gradual. The waste pipe is 32mm internal diameter. All pipes are buried in the walls.
I finished the tiling just before christmas and today I installed the toilet and sink which leads to my problem. The macerator works great on both the toilet and the sink (although i havent tried a no.2 yet!). The problem is that about 15mins after the last time the macertor pumps, it will pump again. And again after another 15mins, this has continued all evening.
My guess is that the macerator has enough power to push the waste along the pipe and most goes down the stink pipe (i can hear it going into the stink pipe), but not enough power to clear it all and over time the waste left in the pipe is dribbling through the one way valve and back into the macerator.
Is there a more powerful macerator that will do this job properly?
Have I installed some thing wrong or missed something?
Should the one way valve seal properly or is it expected to weep a little water?
One solution I have thought of is to install an occupancy sensor to turn the macerator on and off. Would this be a viable solution plumbing wise?
The toilet systern in not overflowing into the pan