Even low levels of phosphate can lead to algae growth in your pool or spa - this one step, one minute test uses powder pillows and vials, which offer increased sensitivity at the lower ranges for an accurate reading, every time! Test for phosphate once a week as the concentration in the water can increase rapidly due to rain, debris or bather load.

Measures phosphate from 0 to 1000 parts per billion and comes in a bottle of 20 test strips. The powder pillows on the strips are less susceptible to damage by heat and humidity, and offer a 5-year shelf life.

Warranty Coverage: Hach Water Testing Systems come with a 30 Days Limited Manufacturers Warranty. The manufacturer warrants this water testing system against defects on workmanship and materials. This warranty will be void if this water testing system is damaged as a result of improper installation or use, or if damage is a result of ice. Warranty does not cover any labour charges, cost of lost water or chemicals, or any other damages that may occur.

Start a Warranty Claim:To begin a claim please email [email protected] with a photo showing the defect(s)/damage to your Hach Water Testing System and include a brief explanation of what occurred.