Diverting water supply at farm plumbing system

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Diverting water supply at farm plumbing system

Author: mlapenna (Canada)

Good day everyone.

I have a photo available here: [photos.app.goo.gl]
(it's essential to understanding the situation)

What I am trying to do is replace the faucet at #4.
#6 is the shut off for the whole house
#5 is a Goulds Pump
#4 is a 1/2 inch faucet (old one shown - it leakes)
#3 is the pressure release for the pressure tank
#2 is a rusted/stuck square value (not sure how it plays a role)
#1 is the shutoff for the pump into the pressure tank

I am trying to release the pressure for a minute or two at #4 so I can replace the faucet.
However, when I drain the pressure tank by opening the valve at #3, when the tank's pressure gets too low, the pump comes on, even if I close the valve at #1. The pump appears to "heave" over and over. a) I am worried I will lose the prime and b) I am worried about damaging the pump.

Question to everyone:
Is there a way to avoid a blast of water coming out at #4 or is it ok to let the pump heave for a minute or two? Or is there another to do this? Sorry if this seems obvious but I tried a bunch of combinations (except the #2 valve) and each time I could see/feel significant pressure about to blast out of #2. Thank you in advance.
Mike

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Re: Diverting water supply at farm plumbing system
Author: hj (AZ) Turn off the power to the pump, because you do not appear to have ANY valve between the tank and #4, so you will have to completely drain the tank to change the valve.
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Re: Diverting water supply at farm plumbing system
Author: mlapenna (Canada) I considered turning off the power to the pump, but wouldn't I lose the prime to the well? It took many hours to get it back, and I doubt I'd be able to do it alone.
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Re: Diverting water supply at farm plumbing system
Author: packy (MA) can't see it well enough but I believe 2 is a pressure relief valve. it must stay.
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Re: Diverting water supply at farm plumbing system
Author: mlapenna (Canada) packy - when you say it must stay, what do you mean? #2 is so tough to turn, I am afraid of stripping (or breaking) the square nut. #3 certainly releases pressure in the tank because the gauge on the pump drops as the tank drains.
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Re: Diverting water supply at farm plumbing system
Author: hj (AZ) Turning off the power to the pump is the same as the pump stopping because the tank is full.
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Re: Diverting water supply at farm plumbing system
Author: packy (MA) it should look like this red arrow.
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Re: Diverting water supply at farm plumbing system
Author: Paul48 (CT) If the faucet is leaking from the spout, put a brass cap on it.
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Re: Diverting water supply at farm plumbing system
Author: mlapenna (Canada) So you are saying put a brass cap on it while I am not drawing water from it - good medium term solution. That buys me time until I replace the faucet. Thanks!
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