When I wash clothes and washer drains the toilets (2 toilets ) and one of three sinks bubble :confused: I have a septic and it was pumped out about 10 months ago this problem comes and goes it use to be only when it had rained but it is at all times 9had no rain in a long time ) I have three bedrooms and two baths it is one level modular home

Start flushing yeast tablets down the drain once a month. You'll never have to have the septic tank pumped again.

XenoSapien