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Check Valves should always be installed in accordance with the original manufacturer’s instructions. When purchased
as a complete Check Valve & Flow Meter combination, a copy of these instructions will be included with the FlowVis®
packaging. If a FlowVis® retrofi t kit has been purchased, it is the installer’s responsibility to ensure that the Check
Valve has been installed correctly and does not violate any local or federal codes relating to Check Valves.
The Virginia Graeme Baker Pool & Spa Act requires that all public swimming pools
& spas having a single main drain or multiple drains that are 3 feet or less (center
to center) from each other, be fi tted with a backup anti-
entrapment system. Such systems include, but are not limited
to, SVRS and Automatic Pump Shut O systems. Special
consideration must be made when installing a FlowVis® to such
applications. Several of these systems do not allow the use
of Check Valves. It is the responsibility of the installer to make
sure that the requirements of the specifi c backup system in
use are maintained.
For these applications, see model FV-C-S in Table 1 on Page 3.
WARNINGS & SAFETY
Warnings & Safety
5
VGBA
On the side of the valve body that is used for the 1.5”, 2”/2.5”, DN40 and DN50/65 models, you will note the
following feature:
VALVE BODY FEATURE
This has no functionality relating to the operation of the FlowVis® and is
simply provided as a feature to be able to plumb in a drain down pipe and
valve. A typical use for this might be a roof mounted solar system. Under
no circumstances should this hole be drilled out when using the valve body
with the FlowVis®.
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