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Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
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SHROOMSISAY01
Mr. Shrooms



Registered: 01/22/17
Posts: 3,849
Loc: Virginia, USA
Last seen: 2 days, 12 hours
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Water pressure switch to automatically cut off power to power washer fog system.
#25473018 - 09/19/18 03:14 PM (5 years, 4 months ago) |
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I have added this circuit to cut the power to the High pressure fog system I built from a pressure washer. Just in case the water pressure that delivers water to the pressure washer drops below 40 psi. I hooked it up last night and it works as it should. This is a good safety device and will keep any high pressure system from burning up if water shuts off. I would suggest putting one in it cost under $35 the way I did it. One mistake I made which is not a big deal, is I bought double the wire I needed to connect the pressure switch and the relays. In the diagram remember the both red lines together represent 1 strand of 14/2 romex wire. One red line being the black and the other being the white which in reality are both power wires and in a perfect world would both be black I just used electrical tape on the white wire to show it is actually a power wire. I do realize there is no interest in the posts I have put up in the last week or so. Evident by no response. But I hope these posts will help someone in the future...
Check my recent posts to see a high pressure fog system (from a $70 pressure washer) in action!!
https://www.shroomery.org/forums/showflat.php/Number/25448049

what I bought...
Southwire 15 ft. 14/2 Solid Romex SIMpull CU NM-B W/G Wire $8 for 15 feet
https://www.homedepot.com/p/Southwire-15-ft-14-2-Solid-Romex-SIMpull-CU-NM-B-W-G-Wire-28827426/202210510
120VAC 15 Amp 2 x $6 you don't need 3 poles just the cheapest you can find that is 120vac 15 amp relay.
https://www.ebay.com/itm/120VAC-15-Amp-Relay-3PDT-Ice-Cube-Flange-Mount-w-187-Terms/252616359010?hash=item3ad11bbc62:g:fQgAAOSwISNbgg12:sc:USPSFirstClass!24201!US!-1

Square D 40-60 psi Pumptrol Water Pressure Switch $14
https://www.homedepot.com/p/Square-D-40-60-psi-Pumptrol-Water-Pressure-Switch-FSG2J24CP/206398813
Edited by SHROOMSISAY01 (10/01/18 05:47 PM)
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Linus Xx0xX
Stranger
Registered: 10/31/19
Posts: 1
Last seen: 4 years, 2 months
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Re: Water pressure switch to automatically cut off power to power washer fog system. [Re: SHROOMSISAY01]
#26307779 - 11/08/19 05:19 PM (4 years, 2 months ago) |
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My friend. These post are very interesting and I will be attempting to follow all your work. I am new to this mushroom culture but in 2 months I have 100 quart jars of grain at 80% colonization. 56 agar dishes all contam free. I bought all materials for my green house build and this misting system is next. Thank you for your work.
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SHROOMSISAY01
Mr. Shrooms



Registered: 01/22/17
Posts: 3,849
Loc: Virginia, USA
Last seen: 2 days, 12 hours
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Re: Water pressure switch to automatically cut off power to power washer fog system. [Re: Linus Xx0xX]
#26307958 - 11/08/19 06:59 PM (4 years, 2 months ago) |
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No, problem my friend. It can be a little confusing at first. If you have questions feel free to ask. Sometimes I question if I have explained things well enough. So I expect questions. No questions are stupid. Ask the question so you are clear as to what is going on. A few minutes of my time is worth saving you money.
I would suggest switching from jars to grain bags. It will save you a lot of time and effort.
I appreciate you letting me know you are going to attempt this. It was much more work than you realize putting this all together to help people. Not knowing if anyone is actually using it is awful. This thing is truly awesome. I am very happy with the results and I am very surprised that it has lasted this long. I thought I would be replacing the pressure washer within a few months. I have an extra pressure washer on hand for when it goes out. My plan was when it goes out to buy another one switch the internals (pump) on the pressure washer and return it to the store for a refund. That way I will always have a spare on hand without having to actually pay for another one.
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