As with all drainage systems, depending on the unit itself (slopes, distances etc.), the grease and floating deposits mainly originating from cooking and laundry activities tend to settle and harden in the pipes between the house and the septic tank when the unit is not in operation much or not at all over a certain period. Your installer will advise you to put in place inspection tees with a plug allowing for maintenance to be carried out easily in the event of clogging.
For the septic tank: when the unit has been shut down, it is simply a question of rinsing the pre-filter with clean water (this is the brush located on the septic tank outlet) to prevent accumulated matter from hardening over time and clogging the filter. Depending on the unit, if a grease trap is required, it should be emptied before each shutdown. These precautions apply to all systems available within our range, following a prolonged shutdown period.
The BIOROCK treatment unit is not affected as only the pre-treated effluents, which are grease free, reach this point. It is simply a question of performing a visual inspection every year in accordance with our user guide. On start-up, after 6 months of inactivity, we recommend letting the clean water run until the water runs directly into the BIOROCK unit itself; this will allow for the correct flow through the splitter to be checked and the BIOROCK media to be re-moistened. No additives of any nature whatsoever must be used in the BIOROCK filter.
We recommend that you entrust the annual service of your unit to a professional. If your installer is not in a position to offer a maintenance contract, we can put you in contact with a specialist company, which you can request on the contact page of our website.