Draining your backyard pool or hot tub

Drain your pool or hot tub in a way that protects fish, plants and local waterways. 

Drain safely

Water from pools and hot tubs can contain chemicals that can harm aquatic life.

Follow these rules when draining:

• never drain into storm sewers or parks
• let chlorinated water sit for 1 to 2 weeks without adding chemicals, or use dechlorination tablets
• test water before draining — chlorine and bromine levels must be 0.1 mg/L or lower
• drain slowly on your property to avoid runoff
• if you have a small yard, drain in stages over time to prevent flooding and runoff
• you must haul away saltwater — never drain it it into storm sewer or household plumbing

Report spills

Call 519-886-2310 immediately to report any hazardous substances entering drains.