Hi everyone. I bought a place around a year ago and it already had a saniflo pro installed. Its actually been ok (as ok as saniflos can be) (touch wood). What happens occasionally is that when the shower is on (shower, sink and toilet all connected) a nasty smell can omit from the saniflo... I once had a really nice engineer out after someone put a baby wipe down the toilet!!! He got a water hoover and sucked all this manky old hair out of the shower. My god I can still remember the smell. He told me to put mr muscle bathroom drain foamer down it... I have done this several times since but the smell always come back. Does anyone have advice I'd be really greatful. I read somewhere that perfectly installed saniflo's shouldn't smell but it was installed before I bought the place and the engineer/plumber said it was in good condition....