Stinky Macerator

[crust677]

Hi I have a macerator in my en-suite which the shower and sink are also connected to. When either the sink or the shower are running the smell is unbelivable!!!!!!!!! but there is no smell when yo flush the toilet. I have tried increasing the amount of water the the toilet flushes with, this has helped a bit. I have tried endless bottles of bleach and disenfactant.
I have cleaned the whole unit out a couple of times, is it usual that the whole inside is covered with you know what? I have had to scoop out handfulls. I would appreciate any help.

 

[daz_jenkins]

i dont think its usual to have that kind of build up in the macerator...all blockage and discharge pipework should be to the manufactuers specification..sounds silly but could double check that..is the external vent blocked causing it not to empty properly?..i dont know if that will be any help to ya mate

 

[moony]

have you got 2 45 degrees instead of one 90 for corners, no it shouldnt be clogged up with poo unless its getting blocked and one of the most common problems we get it is badly installed pipework

 

[johnmcginty]

You can download the pdf instructions of correct pipework if it's a saniflow and check all the sizes and angles are correct , for example only some can have 22mm outlet etc.

 

[migoplumber]

the macerator dischare pipework will be incorrect - discharging at velocity into a stack somewhere, trace the pipework and you will find it joined to the shower waste - before entering the stack, probably with a trap beforehand. the trap will be incorrect (the velocity of the macerator discharge will be emptying the trap)

 

[heinz57]

Migo, whats the solution? a bigger shower trap and/or pipework alteration?

 

[johnmcginty]

Not a bigger trap though an anti syphon trap, hepv0 do them. Try that first as it will prevent induced syphonage.

 

[carpstu]

ive just done one of these and conviced the customer to throw it away and let me pipe it to the mains properly they had a bloke who installed it new come out an fix it twice at a cost of 600 each time but hed piped it up wrong in the first place. althoe i had to cut through 9" concrete to get it to the outside and in to the manhole but i think it was well worth the hassle as was in a rented house and the landlord didnt want anymore hassle