Filters for Water Tank Vents

Ever find a bug doing the backstroke in your water tank? We have.Would you leave a glass of water sitting uncovered for weeks and...

Painting Water Tanks

When it comes to onboard water tanks, we prefer stainless, fiberglass, and even roto-molded tanks (in that order) to aluminum ones. Aluminum tanks tend...

Will Your Tanks Be Clean Next Spring?

When contributor Drew Frye commissioned his family's PDQ 32 catamaran six years ago, his daughter asked, What are these pink lumps in the sink,...

Testers Check Growth in the Lab and on the Boat

When testing a chemicals toxicity and its ability to biodegrade, a common procedure is to dilute each target chemical at various ratios of interest,...

PSs Top Picks for Winterizing

Protecting marine water systems from freeze damage is a deceptively simple goal. The terminology and various product claims can be confusing, and what seems...

Test Checks Burst Point and Freeze Protection

We tested each product for glycol content using a refractometer and either the ethylene glycol or propylene glycol scale, as appropriate. In the case...

Step-by-step Winterizing Tips

Water tanksFirst, scrub clean and dry the freshwater tank well. For water tanks, make sure it is empty, vacuum out every last bit, and...

Refractometer Takes Out All the Guesswork

What matters most, our testing confirms, is not so much which brand of pink stuff you choose, but how you use it. Even the...

AWAB, ABA Top Long-term Test

What We TestedThe test field included clamps from Shields, ABA, Murray, AWAB, Breeze, American Valve, Ideal/Tridon, Trident, Koehler, and Norton. We tested sizes 28...

Marine Water Heater Test

Raritan 1706Raritans units are made in the U.S. (the only in our test), so finding hose barbs or other plumbing fixtures to fit the...