Water Pressure
- Thread starter Johnfin
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Do you have globe valves, 90 degree fittings, piping, is the bathroom higher, does the piping have mineral deposits
If you answered yes then you may have lots of friction loss and you have to calculate the head (.433 x height)
Then times it by 2.31 and calculate the piping and fitting that cause the loss of pressure
Do you have globe valves, 90 degree fittings, piping, is the bathroom higher, does the piping have mineral deposits
If you answered yes then you may have lots of friction loss and you have to calculate the head (.433 x height)
Then times it by 2.31 and calculate the piping and fitting that cause the loss of pressure
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MACPLUMB
In the Trades
Yes it would be the same for your purpose, never mind all the stuff he is throwing at you
So your saying the height of the bathroom above a hose bib has no bearing ?
So copper or non ferrous piping? is the same as galvanized piping
A Globe valve does not have more friction losses then a full port ball or gate valve?
SIGHT UNSEEN You say it doesn't matter
If they took a reading by the hose bib and then by the shower there would be a difference?
BE GLAD YOU ARE RETIRED
So copper or non ferrous piping? is the same as galvanized piping
A Globe valve does not have more friction losses then a full port ball or gate valve?
SIGHT UNSEEN You say it doesn't matter
If they took a reading by the hose bib and then by the shower there would be a difference?
BE GLAD YOU ARE RETIRED
A decent plumber would ask "How far is the hose bib from the bathroom, is it higher then the hose bib or is it a ranch and how far away from the bib"
Taking a reading by the fixture leaves no doubt of the available pressure ESPECIALLY if someone turns on another faucet /fixture to check for a pressure drop
A one family 3 story home for example with a shower on the top floor would have a slight pressure drop when taking a shower and someone on a lower floor flushes a toilet there
would also be a drop in volume
Shame some older plumbing exams never had questions regarding
theory and this is why there are so many lawsuits and shoddy work performed when the unknowing and not to skilled would say
"never mind all the stuff he is throwing at you"
As they get confused with facts they never learned or bothered to take into account the theory involved
A decent plumber knows 50% is OJT with codes and 50% theory as to realize there are charts to look at to consider before spewing "NEVER MIND" as one size fits all
Taking a reading by the fixture leaves no doubt of the available pressure ESPECIALLY if someone turns on another faucet /fixture to check for a pressure drop
A one family 3 story home for example with a shower on the top floor would have a slight pressure drop when taking a shower and someone on a lower floor flushes a toilet there
would also be a drop in volume
Shame some older plumbing exams never had questions regarding
theory and this is why there are so many lawsuits and shoddy work performed when the unknowing and not to skilled would say
"never mind all the stuff he is throwing at you"
As they get confused with facts they never learned or bothered to take into account the theory involved
A decent plumber knows 50% is OJT with codes and 50% theory as to realize there are charts to look at to consider before spewing "NEVER MIND" as one size fits all
When there is no flow, the pressures will be the same except for that effect of gravity. Even a pretty clogged cartridge won't show a pressure drop with no flow.
So what pressure will a pressure assist toilet see as it charges up its tank? During fill at maybe 1 or 2 gpm, the pressure will be less than when the flow cuts off. How much less will depend on the stuff in between. I would think that for a pressure toilet, that it would keep accepting water as the pressure recovers, but I don't know.
If you really are seeing pressures at your hose bib of 29 psi or less, then further checking seems worthwhile. If its 30 or more, then you are probably good without further checking.
I think Flushmate makes the guts. https://www.flushmate.com/products/flushmate-systems
So what pressure will a pressure assist toilet see as it charges up its tank? During fill at maybe 1 or 2 gpm, the pressure will be less than when the flow cuts off. How much less will depend on the stuff in between. I would think that for a pressure toilet, that it would keep accepting water as the pressure recovers, but I don't know.
If you really are seeing pressures at your hose bib of 29 psi or less, then further checking seems worthwhile. If its 30 or more, then you are probably good without further checking.
I think Flushmate makes the guts. https://www.flushmate.com/products/flushmate-systems
NYC had a great toilet change out and my company replaced thousands of toilets.
I would strongly suggest you keep far away from flushmate or other power flush toilets
I was paid over $23,000 to testify against certain products (not to bad for 18 hours of work)
https://www.nydailynews.com/new-yor...s-brooklyn-man-afraid-flush-article-1.1481268
AND
https://www.nydailynews.com/new-yor...s-brooklyn-man-afraid-flush-article-1.1481268
AND
Jeff H Young
In the Trades
I check at hose bib. Never done a pressure drop test could be handy but dont know what numbers Id want
Jeff H Young
In the Trades
So what happened here? Doing a water pressure test on the hose bib verses on a shower? higher elevation would be lower pressure yes. John finn you got problem solved?
