Replacement macerator

[Jeff Layman]

I have to replace an old Saniflo X2 macerator. It has been used as a
pump on the garage sink waste as the garage is lower than the house. The
sink isn't used that much now (it used to be before we came here). A
Screwfix Turboflush Macerator would do the job
(/http://www.screwfix.com/p/turboflush-macerator-550w-240v/94490), but
we have a 22mm pipe to the sewer, and according to the instruction
manual it will not replace a machine installed with 22mm pipework. One
of the reviews repeats this warning ("the outlet pipework should be 32mm
solvent weld so dont reuse old pipework if its 3/4 overflow pipe."), but
another refers to its use with 25mm alkathene pipe. Also, as it appears
to actually be a Saniflo unit, and Saniflo macerators can be connected
to 32 or 22mm pipe, why shouldn't this one?

Anyone connected this unit to a 22mm pipe and wished they hadn't?

--

Jeff

[newshound]

If you don't actually need a macerator, you might be able to replace it
with a cheaper submersible pump. Machine Mart have a range of
float-actuated ones. Also plenty of 12 volt bilge pumps available on
eBay and elsewhere. How much "solids" do you think are going down there?

[Tim+]

Seems pretty pricey. Could you adapt a lidded bucket and one of these?

http://www.anchorpumps.com/grundfos-unilift-cc-5-a-1-submersible-dirty-water-drainage-pump-with-floatswitch?gclid=CKC747ubscoCFQ2eGwodeG8MoQ

Tim

[Jeff Layman]

Good idea. I'll have a look at them.

--

Jeff

[harry]

Your standard pipework in waste systems is not designed to withstand positive pressures, ie the water drains by gravity.
Once you start applying positive pressure (ie by means of a pump) the pipework joints can be forced apart if they are the standard push fit.
So you need glued pipe to prevent this.
The smaller the pipe, the higher the pressure and the more likely to come apart.
Also the pump may not be rated to run for longer periods caused by the restriction of smaller pipe.
Also smaller pie is more prone to blockages (ie ground up shit)