Collection: Dosing Parts & Supplies

Tubing is the wear part

In a peristaltic pump the rollers compress a short length of tube against the housing, and over thousands of cycles that tube takes a set. As it does, the volume delivered per rotation falls, so the pump keeps running while quietly delivering less than the schedule says. Manufacturers quote a service life in running hours for head tubing; the practical answer is to change it on that interval and recalibrate straight afterwards rather than waiting for the shortfall to show up in test results.

What is listed here

• Peristaltic head tubing and complete head tube assemblies.
• Replacement dosing pump heads.
• Colour-coded delivery tubing in fixed lengths, and medical-grade tube sold by the inch.
• Check valves, anti-siphon valves, push-connect fittings and elbow connectors.
• Magnetic and clip-on holders and organisers for dosing lines.
• Graduated cylinders for calibrating a pump against its actual output.
• Accessory kits combining tubing, holders and connectors in one package.

Keeping a dosing setup tidy

Colour-coding pays for itself the first time you refill three containers at once, because a different tube colour per solution removes any chance of putting alkalinity down the calcium line. Run the lines through a holder at the sump so the outlets stay fixed above the water line, and leave enough slack that lifting a container cannot pull a tube free. After any tubing change, calibrate into a measuring cylinder before trusting the schedule again. Email sales@jlaquatics.com if you need a part number matched to a pump.