Frequently Asked Questions

Frequently Asked Questions



 Q: How do V-traps work?

A: A special segmented valve, made from tough, flexible, high-tech material limits air flow and allows the condensate water to drain.  The trap collects the water in its vertical tube at a height equal to the negative pressure of the air conditioner.  The water  automatically drains to maintain the column of water until the air conditioner cycles off.  With the help of gravity, the water from the V-Trap completely drains out flushing dirt, mold and bacteria.  It never freezes in the winter.




Q: How do I know if I have a positive or negative pressure on my drain?

1. If air blows out of the drain connection the pressure is positive.
2. If the blower draws air across the evaporator coil the pressure is negative.

Q: Is a drain trap necessary on positive pressure systems?

A: No, not unless it is required by local code.

Q: Can I use bleach or mold pellets with the V-trap to keep bacteria or mold from growing.

A: Yes.

Q: Is it safe to use coil cleaners with the V-trap drain?

A: Yes, but after cleaning the coil the cleaner must be flushed out with plenty of water to keep from damaging the coil or the V-trap.

Q: Are there any special requirements for installing the V-trap drain?

A: Not for the unit V-traps. but there is a minimum vertical distance for the in-line V-traps.


Q: Why is the socket connection size different than the connector size.

A: The V-trap condensate drains were designed to eliminate all the problems associated with P-trap condensate drains. By making the outlet connection larger than the inlet connection there is less chance for sludge, bacteria and mold to accumulate and plug the drain line if preventative maintenance is neglected.


If you have a question that isn't answered here, please contact us! or call 724-650-8178 and please leave a message if we aren't available.