Vacless Systems Inc. is working with the Consumer Product Safety Commission to conduct a recall of about 1,600 of its safety vacuum release systems.

The Sylmar, Calif., manufacturer is working with the Consumer Product Safety Commission to conduct a recall of some units of the Vacless Breather 1, model number SVRS10ADJ, sold between July and September 2010. The recall was initiated when the manufacturer discovered that one batch of SVRS’s was inadvertently made with the wrong plastic, causing the pistons to stick under more extreme temperature conditions, and the product to fail.

“The material we wanted is nylon [that is] 20 percent glass filled; however, our supplier provided us with a nylon with no glass fillings in it, [which] made it soft,” said Vacless President Hassan Hamza. “Variations of temperature affected the piston material and caved in some of the pistons, and people called us and said they had problems with the units, that the piston sticks.”

Immediately upon discovering the problem, Hamza said, Vacless contacted the CPSC. He added that Vacless will reimburse installers for their services in replacing clients’ units. To eliminate future problems, the company has put new checks in place as well as new incentives for installers and pool owners to register their products.

The CPSC noted that none of Vacless’ other 11 models are affected, and that the recall is restricted to the specific serial numbers of the SVRS10ADJ.

“We were just concerned with this particular product,” said CPSC spokeswoman Kathleen Reilly. “[Vacless] said they didn’t have problems with any of their other products and there hadn’t been any reports, so there’s no reason for us to doubt that.”

The CPSC recommends operators close pools with these units until a replacement has been made. “The good news is that a lot of pools aren’t open right now, and people have an opportunity to take care of this before the season begins,” Reilly said.

Vacless estimates that the affected SVRS’s constitute about 2 percent of the total products it has sold. Vacless also urges dealers and distributors who have sold the devices in question to contact clients and the manufacturer to arrange for replacement.

“The company is doing the right thing,” Reilly said. “They need to be commended for making sure that they take care of this problem where it exists.”