Local drain guide
What actually blocks drains around Richmond
First: does your waste leave the property?
Plenty of people in this district genuinely do not know, particularly if they have bought recently. Look for one or two lids set into the ground somewhere in the yard, or a treatment unit with a small blower running. Either means the waste stays with you.
It is worth establishing on a quiet afternoon rather than at the point the toilet will not flush, because it determines who you should be ringing. Some of what goes wrong out here is a plumbing job and some of it is a pump-out or a service visit.
A full tank presents exactly like a blockage
When a septic tank fills past its working level, there is nowhere for the next flush to go, so it backs up toward the house. The line between the house and the tank is entirely clear the whole time.
A conventional tank generally needs pumping out every three to five years depending on size and household. If nobody can tell you when yours was last done, assume it is due. That check costs far less than an emergency at 11pm.
Saturated ground stops the disposal area working
Effluent leaving the tank has to soak away through absorption trenches or an irrigation field. That only works if the surrounding ground can accept water.
After a genuinely wet stretch it cannot, and the whole system backs up behind it. Sometimes it recovers on its own once things dry out. Sometimes the disposal area has simply reached the end of its life, or the household has grown beyond what it was sized for. Effluent surfacing at the ground is a health issue and should be dealt with rather than watched.
Aerated systems have a servicing obligation, not a suggestion
An aerated wastewater treatment system is a more involved arrangement with a blower, usually a pump, and moving parts that wear. In New South Wales it operates under an approval from Council and carries a servicing requirement, normally quarterly by an accredited servicing agent.
That is a condition of the approval rather than optional maintenance. It also happens to be the thing that catches a failing pump before the failure reaches your bathroom, which is the practical reason to keep it up.
On sewer, it is the ordinary causes
Where the property is connected, the usual suspects apply: roots finding a weeping joint in older earthenware, wipes that were never going to break down, fat that set as it cooled, or a section that has cracked.
The difference in this district is simply that we do not assume it. A camera on a repeat blockage tells you which of those you have, and on a rural block with a long run to the street it is usually worth the money the second time it happens.
