About Us Learn more about Trap Gap™

A few words from the creator of the TrapGap™

Working as a Licensed Plumber and a Cross Connection Control Specialist, I have performed many cross connection control surveys. While looking for actual and potential hazards, I repeatedly come across what is arguably the most common type of Severe Hazard Cross Connection - the Trap Seal Primer.

While Plumbers are required by code to install Trap Seal Primers to floor drain traps, they must also ensure they do not make connections between the potable water system and any potential source of contamination, without suitable/approved backflow protection. In the case of Trap Seal Primer supply lines, this Cross Connection between the potable water system and the sanitary drainage system has, for the most part, been overlooked with respect to approved backflow protection. I believe this is primarily due to the fact, that a device which provides a practical and approved method of backflow protection for Trap Seal Primer supplies, did not exist.

More and more municipalities are adopting Backflow Prevention & Cross Connection Control programs. In Canada, most municipalities refer to the CSA B64 manual to set standards, to which they can enforce their by-laws.

When looking to design a device which would offer a practical and approved method of backflow protection for Trap Seal Primers, I turned to the CSA B64 manual. The CSA B64 manual states that “…air gap is the best means available for protection against backflow”1 and that “…an air gap shall remain the first choice to eliminate backflow.”2 Also, it recommends an Air Gap for protection against severe hazards.3 The CSA B64 manual classifies a Trap Seal Primer as a severe hazard.4

Using the CSA B64 manual, I had the template to develop the best possible device, which can be used as a practical and approved method of backflow protection for Trap Seal Primer supplies. The Trap Gap™ was designed from the plumbing code, to satisfy the plumbing code.

Take some time to visit all sections of our web site, to familiarize yourself with the benefits of the Trap Gap™. If you have any questions, please visit our Get the Facts page, or contact me and I will personally answer them for you.

1. CSA B64.10-11/B64.10.1-11 (2011) Selection and installation of backflow preventers/, 4.1.1, (Air Gap) General, page 12.

2. CSA B64.10-11/B64.10.1-11 (2011) Selection and installation of backflow preventers/, 5.3.2.3, page 33.

3. CSA B64.10-11/B64.10.1-11 (2011) Selection and installation of backflow preventers/, Table 2, page 34.

4. CSA B64.10-11/B64.10.1-11 (2011) Selection and installation of backflow preventers/, Guide to assessment of hazards, Table B.1, page 50.

full.png