Hi. I have just removed my bath with shower over with the intention of fitting a shower tray. As the floor is solid concrete I bought a tray which is raised on legs. However, with the tray sitting at its maximum height and a standard shallow trap fitted, the waste pipe now has a very slight increase before it joins with the waste from the hand basin (at which point it goes to the soil pipe).
Basically my question is will I get away with this (I would accept a little bit of water in the shower tray...) or will it cause the tray to overflow? I know it's going uphill but its only by a couple of milimetres and the pipe is only 18 inches long before it joins with the basin waste.
If not, is there an alternative trap (shallower) that I can use, or anything else I might be able to do without resorting to the last resort of building a platform to sit the tray on?
Any help/advice will be much appreciated.
Basically my question is will I get away with this (I would accept a little bit of water in the shower tray...) or will it cause the tray to overflow? I know it's going uphill but its only by a couple of milimetres and the pipe is only 18 inches long before it joins with the basin waste.
If not, is there an alternative trap (shallower) that I can use, or anything else I might be able to do without resorting to the last resort of building a platform to sit the tray on?
Any help/advice will be much appreciated.