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Septic Care2026Tiny, Tay, Midland, Wasaga, Collingwood
Septic Care: What Not to Do (and How Often to Pump)
Have the tank checked every 3 to 5 years and pumped when a third of its depth is sludge and scum (tertiary units get serviced per their contract, often yearly), and keep vehicles, structures, trees, grease, wipes and softener backwash off and out of the system. Most beds that die early are killed by one of those, and almost all of them cost nothing to avoid.
Updated October 2026 · Georgian Bay Siteworks, the site work division of ICFHome.ca
Insured to $2,000,000Site work division of ICFHome.caBuilding since 1979250+ projects in Simcoe County
How Often to Pump
The Tay Septic Smart guide says to have a licensed hauler or septic professional inspect the system every three to five years and pump when a third of the tank depth is sludge and scum. It also says to check and clean the effluent filter every year.
| Item | How often | Rough cost (2026) |
|---|---|---|
| Tank pump-out | Every 3-5 years, or at one-third sludge and scum | $400-$800 (HomeStars); Premier Tech quotes about $500 |
| Effluent filter cleaning | Every year | $100-$400 if a pro does it |
| Tertiary unit service | Per contract, often yearly | Roughly $300-$600 a year |
| Holding tank | Every time it fills | Per pump-out, adds up fast |
What moves the pump-out price: tank size, how far the truck drives, whether the lids are dug up already, and local disposal fees. Expose the lids before the truck comes. Tiny’s re-inspection letter says haulers will expect you to.
Builder truth: septic additives are not a substitute for pumping. Tay’s guide says you do not need them. Save the money for the truck.
Don’t Drive or Park on It
A leaching bed is pipe and stone under a thin layer of soil. A loaded truck crushes the pipe and packs the soil so it cannot breathe. The FOCA report covered by Cottage Life lists driving over the bed among the common reasons systems failed re-inspection. Tiny’s re-inspection letters list vehicles on the tank or bed as a common deficiency too.
The Ecoflo owner’s manual says never drive or set anything over 225 kg (500 lb) within 3 m of the unit’s lid. That includes the pump truck, the propane truck and your brother-in-law’s boat trailer.
Don’t Build on It
Decks and posts
Deck posts on tanks show up on Tiny’s deficiency list. Footings crack lids and block access.
Sheds and patios
Structures and hard surfaces over the bed stop it breathing. Oro-Medonte’s guide shows sheds and decks 5 m from the bed.
Pools and hot tubs
Keep them 5 m from the bed per the same guide. Do not drain hot tub water into the septic either.
Rinks and fire pits
A backyard rink packs snow and ice and drives frost deeper. Fire pits in the bed are on Tiny’s deficiency list.
Don’t Put These Down the Drain
- Grease and cooking oil. It floats, hardens and plugs the outlet and the bed. Wipe pans into the garbage.
- Wipes, even “flushable” ones. They do not break down in a tank. They wrap around pumps.
- Water softener backwash. Tay’s guide says do not send it to the septic unless the system was designed for it. The Ecoflo manual says the same.
- Hot tub water. Too much water at once, plus chemicals.
- Paint, solvents, pesticides and medicines. They kill the bacteria the tank depends on.
- Garburator waste, unless the system was sized for it.
- Roof water and sump pumps. Clean water still uses up bed capacity.
Don’t Plant Trees Close
Roots find the moisture in septic pipe and fill it. The Oro-Medonte and Tay guides show about 6 m from the bed for a tree, and the Ecoflo manual says no trees within 3 m of its unit. Grass is the best cover. See landscaping over a septic bed for what does work.
Closing a Cottage for Winter
- Drain lines that could freeze, and use only plumbing or RV antifreeze in traps, sparingly.
- On a high-water-table lot, ask your hauler before pumping in late fall. An empty tank in wet sand can be pushed up by groundwater.
- Leave a good snow cover on the bed. Snow is insulation. Do not plough, pack or snowmobile over it.
- If you have a pump chamber, know whether the pump line drains back. If it does not, ask your installer how to protect it.
- Ecoflo owners: the manual says not to shovel or blow snow into piles on top of the unit.
In Tiny? Expect the Re-Inspection
Tiny inspects a different part of the Township each year on a cycle of about six years, with a visual inspection plus a pump-out report you arrange. Everything above is what the inspectors look for. Read our Tiny re-inspection guide before your letter shows up.
Need the Tank Lids Dug Up or Risers Added?
We expose tanks, install risers, fix grades that send water onto the bed and repair damaged lines once permitted.
Related guides
Frequently Asked Questions
How often should a septic tank be pumped in Ontario?
Have it inspected every 3 to 5 years and pumped when a third of the tank depth is sludge and scum. Tertiary units are serviced on their maintenance contract, often yearly.
How much does a septic pump-out cost?
Roughly $400-$800 in 2026. Tank size, travel distance, disposal fees and whether the lids are already exposed move the price.
Can I park or drive on my septic bed?
No. Vehicles crush pipes and compact the soil, and driving on the bed is a common reason systems fail inspection.
Can I put a shed or deck over my septic?
No. Structures and hard surfaces over the bed or tank block access and air, and Tiny’s inspectors flag them. Keep them about 5 m from the bed.
Can water softener backwash go into the septic?
Not unless the system was designed for it. Route it elsewhere as allowed by your municipality.
Do septic additives help?
No. The Tay Septic Smart guide says you do not need them. Regular pumping does the job.
How do I winterize a cottage septic system?
Drain lines that could freeze, use only plumbing antifreeze in traps, leave snow on the bed for insulation, and ask your hauler before pumping a tank on a wet lot in late fall.
