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Posted: Fri May 29, 2009 10:45 am
by mikael
Hi,
Does anybody know what the standard distance is for underground foul water rising mains in relation to clean water pipes and other services?
(A diagram of some sort would be very helpful!)
Thanks
Posted: Fri May 29, 2009 3:39 pm
by lutonlagerlout
removed by self due to inane response
LLL
Edited By lutonlagerlout on 1243894179
Posted: Fri May 29, 2009 5:56 pm
by msh paving
a foul water rising main is a pumped sewerage pipe from a pumping station to the sewage works ,they will run in roads and possibly cross fields and have no interest to a home owner
as far as I'm aware there is no regulation distance required MSH 
Posted: Fri May 29, 2009 10:53 pm
by flowjoe
I am with MSH on this, because its a pumped system the pipework should be to a standard where contamination is not an issue. Tested to 2/3 bar etc....
Posted: Sun May 31, 2009 6:40 am
by seanandruby
It is all depending on existing services, where you are pumping from and to where. obviously if you are below existing services contamination is less of an issue. specialist fittings and pipe work are needed ie hpde, tyton, timesaver, viking jonson fittings, air valves etc. gradient is not a problem as it is pumped from pumping station to outlet. a minimum of 100 dia pipe is required.
Posted: Mon Jun 01, 2009 8:14 am
by TheVictorianCobbleCo
Guessing that this is a contractual application, you should have a standard supplied by who-ever placed the order. Having said that, generally the minimum spacing between runs of pipes would be 1.5 x the largest dia, but remember that you need to allow spacing for flanges and supports, access etc. PVC and HDPE piping have their own specs, having to be supported more often. From what I can rememember minimum depths allowed is 650mm to top of pipe running horizontally with warning tape 150mm above that. These are just general guidelines, either get your hands on a engineering handbook or check with the project managers - they should have all these details on data sheets.