I can tell you from first hand experience - Do not restrict the air
flow of a roof vent associated with plumbing, especially if it's
associated with the Loo.
Burt, K6OQK
> On 4/15/2012 5:41 AM, Chuck Harris wrote:
> > Yes, but you GPS antenna surely would notice the infusion
> > with various fumes and chemicals that come from the vent
> > pipe. Remember, the vent is open to the sewer, its purpose
> > is to prevent pressure build up in the sewer from blowing
> > (or sucking) the water out of the various traps and letting
> > sewer gas into the house.
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
[email protected]
www.biwa.cc
K6OQK
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