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    wothersr's Avatar
    wothersr Posts: 1, Reputation: 1
    New Member
     
    #1

    Jul 24, 2017, 11:55 AM
    Macerator Venting
    Hi All,

    I have a macerator (SANIPLUS from SaniFlow) in our en-suite that is starting to play up, 11 yrs old.

    First symptoms started about a month ago where the pump would continually run longer than expected despite it being drained fine.
    I opened up the device (fun!) and the noted the blades were pristine so not a debris/blockage with that part.
    The microswitch/membrane looked a bit coated(!) so I cleaned that and then sealed up and tried it again.

    It seemed to work ok at that point for a month or so but then the other day it didn't drain and backed up the toilet bowl. The thermal cutout timer kicked in and it took a long time to drain with a few on/off switches required.

    I've come to the conclusion, given its age, that it might be time to replace it but whilst reading an installation manual I've noticed that the opening on the top right where a venting pipe should go, has been blocked off with a white cap.

    So a couple of questions:

    1) Is it ever ok not to vent these macerator pumps? Other posts seem to suggest this goes against the plumber codes? This was installed in 2006 by the previous home owner.
    2) Can I replace the unit myself or is a registered plumber required? I'm handy with DIY and it seems to be a like for like replacement but not sure about regs etc?
    3) If I do need to install a vent pipe can i connect this to a pipe exiting the external wall? The unit is not near to the existing en-suite venting pipes and faces an external wall.

    Many Thanks,

    Russell
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
     
    #2

    Jul 24, 2017, 01:31 PM
    Hi Russell

    1) No, these units MUST be vented properly. Call 800-571-8191 to talk with technical support about your installation setup.

    2) Yes, you can easily replace this unit, however, a plumbing permit may be required in your area (check with local building department for requirements).

    3) Yes, the macerator vent can and usually does connect into the existing plumbing vent system although there are exceptions (but usually not needed in most cases).

    Mark

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