Hi - my wife has got herself an empty retail unit for her cake business and is expecting me to fit the kitchen for her. The previous tenants had a high-level sink, because the waste pipe leaves the unit about a metre up the back wall, but she wants her kitchen at normal height. One option is to put in a floating floor and raise everything up so the whole work area is at a height dictated by the sink waste. We're not keen on that because of cost and time, although I haven't ruled it out.
The other option is a pump under the sink to lift the waste water up and out of the existing waste pipe. I'm familiar with macerating pumps and their problems, but it's a downstairs unit on a concrete floor and would have only grey water to deal with, and as it's not handling toilet waste I don't mind cleaning it out from time to time. However, I don't have control of the waste pipework after it leaves her unit. It turns three or four 90 degree bends before joining a waste pipe in a cafe nearby, all using compression joints on 32mm pipe, and I'm concerned that a pump might cause problems further down the line - eg burst joints, fountains out of the neighbour's sink, etc?
So two questions I hope someone can help me with:
1. Is pumping feasible at all given I'm connecting to existing internal pipework? Any suggestions for how to improve the situation?
2. As it's grey water, is a macerator necessary or is there a simpler pump solution? Any recommendations?
Many thanks in advance
Mac
The other option is a pump under the sink to lift the waste water up and out of the existing waste pipe. I'm familiar with macerating pumps and their problems, but it's a downstairs unit on a concrete floor and would have only grey water to deal with, and as it's not handling toilet waste I don't mind cleaning it out from time to time. However, I don't have control of the waste pipework after it leaves her unit. It turns three or four 90 degree bends before joining a waste pipe in a cafe nearby, all using compression joints on 32mm pipe, and I'm concerned that a pump might cause problems further down the line - eg burst joints, fountains out of the neighbour's sink, etc?
So two questions I hope someone can help me with:
1. Is pumping feasible at all given I'm connecting to existing internal pipework? Any suggestions for how to improve the situation?
2. As it's grey water, is a macerator necessary or is there a simpler pump solution? Any recommendations?
Many thanks in advance
Mac