Massachusetts Board of State Examiners of Plumbers and Gas Fitters
Policy for Chemical Dispensing Systems
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Regarding an Alternative to the Existing Chemical Cleaning Dispenser Policy
Enacted September 1, 2010
(Jurisdiction regarding this policy is governed by 310 CMR).
NOTICE: Chemical Cleaning Dispensers incorporating the Alternative Hose Connection, approved by the Board shall not require a permit and may be installed by an unlicensed person.
HOSE CONNECTION
The Board of State Examiners of
Plumbers and Gas Fitters voted to allow a water hose connection as
an alternative to the hard plumbing requirement for Chemical Dispensing Systems
installed in the Commonwealth provided the dispensers meet the following
requirements.
1. All
dispensers shall have an Air Gap or, an alternative Certification of Listing
under the ASSE 1055B Standard.
2. Dispensers
shall include a dual check valve with an atmospheric vent device installed at
the water inlet as a secondary backflow protection.
3. A
stainless steel or nylon braided hose must be used.
4. A
pressure bleeder device shall be provided which will visually free flow water
through the atmosphere from the faucet connection to a sink or drain. The
purpose of the bleeder device is to indicate that the water is running and
should be shut off to prevent hot water migration. The bleeder device shall
connect to the water source utilizing a quick disconnect coupling.
5. All
external components will be permanently installed on the dispenser by the
manufacturer and be ready for installation and use. External components include
the dual check valve with atmospheric vent, stainless steel braided hose and the
pressure bleeder device.
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