This photo is a taped distribution register grill. This was taped for pressure testing of the duct system to determine its leakage rate which should be below 4%. This is accomplished by taping the registers and returns and using a testing blower which will...
Drain Testing-What are the Risks? Plumbing drain testing has become a common occurrence when purchasing an older home known or suspected to have been built using cast iron for drain lines. In older homes in the Houston area, those built before the 70s, cast iron was...
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