Swimming Pool Flow Meters

Measure and monitor your pool's water flow rate accurately with a pool flow meter — an essential diagnostic and operational tool for properly sizing pumps, commissioning chemical dosing systems, and verifying salt cell performance. PST Pool Supplies stocks a complete range of flow meters from Blue-White Industries, Pentair, Pulsafeeder, and Rola-Chem in sizes from 3/4" to 2" and flow ranges from 2 to 300 gpm, starting from $37.

Blue-White Industries leads the collection with multiple flow indicator and meter options. The Blue-White F-1000 Digital Flow Meter (2" PVC, 30–300 gpm) is a premium digital paddle-wheel flow meter providing precise electronic readout for high-volume commercial and residential applications. The Blue-White F-300 (1" PVC, 5–35 gpm) is ideal for smaller residential systems and chemical dosing loops. Blue-White glass flow indicators (with 3/8" OD tubing) are low-cost visual flow verification devices used commonly in chemical metering pump installations — the floating bobbin rises and falls with flow rate to provide visual confirmation of chemical flow. The Pentair 3/4" flow meter (2–16 gpm, nylon threaded ends) is a compact unit designed for salt chlorine generator bypass plumbing and other low-flow monitoring applications. Pulsafeeder flow meters (1-1/2" at 20–80 gpm and 2" at 30–140 gpm) and Rola-Chem flow meters (1-1/2" vertical mount at 25–60 gpm and 2" top-mount at 30–150 gpm) cover the mid-to-high flow range for commercial pools and aquatic facilities. For chemical dosing systems that use flow meters for proportional dosing control, see our chemical feeder collection. Blue-White flow meter installation and calibration guides are available at Blue-White's official documentation portal.

Flow meters are required equipment for all salt chlorine generator installations (most manufacturers specify minimum flow rates for proper cell operation), for chemical dosing systems requiring proportional flow-based injection rates, and for any pool commissioning where actual pump flow rate needs to be verified against design specifications. Inline flow meters are installed in the plumbing run and require cutting into the pipe — always install on a straight section of pipe with adequate upstream and downstream straight-run length (typically 5–10 pipe diameters) for accurate readings. Digital flow meters offer the highest accuracy and are preferred for chemical dosing applications; analog float-type indicators provide adequate visual confirmation at lower cost for general monitoring.

Shop pool flow meters and ensure your pool's plumbing delivers the exact flow rates your equipment requires.