Vacuum Release System

Protect pool bathers from drain entrapment with safety vacuum release systems (SVRS) from Vac-Alert and Vacless. PST Pool Supplies stocks complete SVRS units, replacement parts, maintenance kits, and accessories for pool drain entrapment compliance — starting from $9.60.

Drain entrapment is a life-threatening hazard in swimming pools and spas — when a swimmer's body or limb covers a drain, the suction from the pool pump can create powerful entrapment forces exceeding hundreds of pounds. The Virginia Graeme Baker Pool and Spa Safety Act (federal law) requires SVRS or dual-drain systems in public pools and spas; many states extend these requirements to residential pools. A Safety Vacuum Release System detects the sudden pressure drop that occurs when a drain becomes blocked and automatically stops the pump or releases the suction within seconds — before entrapment can cause serious injury. The key products in this collection: the Vac-Alert VA-2000 ($571.90) reacts in less than one second to release dangerous suction vacuum — one of the fastest-responding mechanical SVRS units available. It installs in the pump suction line and requires no electricity to operate. The Vacless SVRS Adjustable Auto-Reset ($477.30) is an electrical SVRS that stops the pump when entrapment is detected and automatically resets after a three-minute delay with an audible alert — appropriate for pools where unattended automatic restart is acceptable. The Vacless SVRS Non-Adjustable Electric requires manual reset after activation, ensuring an adult inspects the pool before pump restart. Replacement parts for the Vac-Alert VA-2000: adjustment screw security cap ($9.90) and security cap key ($9.60) prevent tampering with the trip pressure setting; union nut ($10.10) and tailpiece 1-1/2\" slip ($9.60) are the plumbing connection components; vent screen ($9.90) prevents debris from entering the vent port; vacuum gauge 0–30 inHg ($18.00) verifies system function; spring 3.5 lb ($10.00) replaces the activation spring. The Vacless SVRS Maintenance Kit ($43.70) provides all wear components for routine VAC55 system service.

SVRS systems must be installed by a qualified pool professional in accordance with local codes and the manufacturer's installation instructions. The Vac-Alert VA-2000 requires calibration to the specific pump suction pressure of the installation — the adjustment screw sets the trip threshold. Test the SVRS monthly by briefly blocking a drain and confirming the system activates as designed.

Shop pool safety vacuum release systems at PST Pool Supplies and maintain compliant, life-safety drain entrapment protection for your pool or spa.