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black water/ grey water and the code  RSS feed

brian davis
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I am a plumber, I have installed black water/ grey water systems...maybe i can help
grey water is the discharge water from...lavitory sinks, bathtubs, laundry tubs, clothes washer
the kitchen sink >>>IF<<< ther is NO garbage disposal
black water is the discharge from toilets, kitchen sinks with disposals..any fixture that has fecal or biological mater [poo poo/ food]
i generally install a septic tank with a bypass pipe around the tank for grey water
or..in simpler nterms, a tee tied into theoutlet side of tank
another methoid, is to pipe the grey water into a "lift station"
a plastic barrell, with a float pump installed inside it,,,you can pump out of this tank to water plants or pump it to? usefull info on greywater

needed to add to this..if you do install a pump....you must install a check valve on the outlet side of the pump...if not...your pump will kick on and off
till it burns up...we call this jacking off...nasty, but thats what its called...there are 2 types of ck valves..and it maters which you use..if installed in a horizontal pipe..use a swing check...must be level
if installing in a vert. line install a spring ck... i perfer a swing...no/little obstruction. a spring is obstructed...by code..these need to be installed with a ball valve and a union
if no bal valve..when you go to replace it....all kinda "stuff" is going to spray on to you...install upstream of ck with union

Acetylsalicylic acid is aspirin. This could be handy too:
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