SOURCE: Hi. I have a saniflow macerator,it's servicing
Hi Neil,
The pump is activated by a pressure switch inside the unit and would not normally make any noise, so probably can rule that one out!
From the manual on the saniflo it would suggest either a foreign object in the unit, a defective motor or control unit. It may be that you are unlucky and have a loose macerator blade that needs to be tightened (and loctite applied).
I would double check that the clunking is definitely coming from inside the unit and not a pipe or something else moving (the water pushing the 90 degree rubber discharge tends to move and can create movement around it). When you are sure, it will be the not so nice job of opening up the unit:
FIRST .. RUN THROUGH CLEAN WATER (will make sense later!)
- *** DISCONNECT FROM THE MAINS SUPPLY ***
- Empty the Cistern, bowl and disconnect the inlet pipes to the WC
- remove the WC and cistern
- being very careful, disconnect the outlet (some have non return valves, some don't, so you may get some sludge coming back down the pipe). Hopefully none if you pushed enough clean water through initially
get unit out and wear rubber gloves to protect your hands from getting germs in cuts etc. Normally need a star driver and flat blade screwdriver
If it is the macerator blade it should be clear that it is loose and could be tightened up. It could be play in the motor which unfortunately would mean a new unit - to test, gently pull up on macerator blade and feel for movement vertically.
also check for any foreign objects etc.
While it is out you may as well clean it out - I normally do this outside by putting warm bleached water into the unit for around 30mins, swishing it about and then emptying down a drain (cover up the mains cables in a plastic food bag first!). I also sometimes use a hose pipe to really get into all of the nooks.
Good luck with the fix, if this helps pls leave feedback, if not let me know and I'll try and help some more
Cheers
It could be the type of flap you are using. I would suggest you try a different shaped flapper (a cone would work best) and if that doesn't do it, put a new kit into the unit, because it could be that the float system is sticking causing it to continue running.
find water pressure regulator. it will have a bolt coming out of the top with a nut at the base of it.loosen nut. while toilet is being flushed, adjust bolt till noise stops. turn bolt clockwise to adjust.
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