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Bio-Pure RV Black Tank & Drain Treatment — Liquid 32 oz
$18.62 - $29.95
Liquid RV treatment with a citrus-ginger scent, for black tanks, gray tanks, sensors and drains. The bottle has a built-in measuring chamber marked in fluid ounces. Safe for all pipes.
Choose your strength
Black tank treatments per container, by tank size.
| Strength | 20–50 gal | 55–88 gal |
|---|---|---|
| Concentrate300 million CFU/oz | 16× | 8× |
| Super Concentrate600 million CFU/oz | 32× | 16× |
What it does
A holding tank treatment for black and gray tanks: it breaks down organic matter, bottom solids, scum and toilet paper, eliminating odors at the source. Reduces ammonia-, nitrate- and hydrogen-sulfide-forming bacteria and their odors.
- Black tank — routine treatment, or a soak and clean-out
- Gray tank and drains — showers, sinks and laundry drains
- Also for boat and marine septic and drains
Why DPW matters
Bio-Pure includes deproteinized whey (DPW), a nutrient source that jumpstarts the microbes. RV tanks see intermittent use and low oxygen, which hold ordinary bacteria back; DPW helps Bio-Pure's microbes activate faster and get to work on waste and biofilm.
How to use
Shake well. Doses depend on the strength:
| Use | Concentrate | Super |
|---|---|---|
| Black tank, per 50 gal | 2 oz | 1 oz |
| Clean-out | 4 oz | 2 oz |
| Gray tank & 4 drains | 2 oz | 1 oz |
Black tank: add directly to the toilet and flush. Gray tank and drains: every 2–3 months, mix the dose with 32 oz of warm water, pour 8 oz into each of four drains, and leave overnight.
Clean-out: drain the tank, refill it halfway, add the clean-out dose to the toilet and flush, let it sit 24–72 hours, then drain.
Safe and natural
Safe for animals, humans, plants and pipes, and environmentally safe. All natural and biodegradable. Made in the USA, backed by 30+ years of development and testing, and 100% satisfaction guaranteed.
Follow the directions and warnings on the label. For more information, visit the Bio-Pure Corp. website.