Hot Tub Things® Jet Line Cleaner (16 fl oz) – Spa & Hot Tub Plumbing Cleaner

Q: How often should I use Jet Line Cleaner?

A: Use every 3–4 months, or before each water change, to remove buildup and biofilm.

Q: Can I use this product with water still sanitized?

A: Yes, but for best results, use just before draining the spa.

Q: Is it safe for all spa plumbing and jets?

A: Yes — it’s compatible with acrylic shells, PVC plumbing, and all standard spa materials.

Q: Will this product cause foaming?

A: Temporary foaming is normal during circulation; it will rinse away after draining and refilling.

Q: Can it be used in jetted bathtubs?

A: Yes — it’s safe for both portable spas and in-home jetted tubs.

Remove filters before using Jet Line Cleaner.

Add 2 oz per 250 gallons of spa water directly into the filter well or skimmer with jets running.

Run jets on high speed for 15–30 minutes to circulate cleaner through plumbing lines.

Allow spa to sit for 1 hour (or overnight for heavy buildup).

Drain spa completely.

Rinse interior surfaces thoroughly with fresh water.

Refill spa, reinstall filters, and balance water chemistry before use.