River Water vs. Tap Water for Carnivorous Plants in Coastal Oregon

A Coquille, OR grower (2 blocks from river, 17 miles from ocean) asks if river water is safe, given dry summers and difficulty testing tap water (NTU 0.02, hardness 5—units unclear).

River Water Likely Fine If Not Tidal

Upstream 17 miles is probably above tidal influence. Avoid if near ocean (brackish) or heavy septic runoff. If water looks clean, it’s likely safe.

Test with ZeroWater Filter TDS Meter

Buy a ZeroWater pitcher (includes TDS meter) to test tap and river water. Their ion-exchange resin removes minerals. Alternatively, test at aquarium/pond store. Distilled water is a reliable fallback. Sarracenia are forgiving—full sun, pots in trays, outdoor year-round works in Bandon’s mild climate.

New growers should consider our Volume 1 DVD for hands-on guidance on water, soil, and avoiding common pitfalls.