So what kind of water do I use to cool my yong heng compressor

Used to use distilled water until I read that it's reactive with aluminum cooling jacket. I use filtered water with water wetter now. 3 years & going strong.
Hi Gerry52.
I'm going to start using some kind of water wetter -- don't know which brand. I've been using tap water without any additives, but it's a real hassle to keep mold and algae from growing.
Are you using the Redline stuff or some other brand? Does it keep algae and mold from growing? How often do you have to dump out your bucket -- like once a year?

stovepipe
 
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I'm using regular antifreeze, just a bit, a cup or less in my 5g bucket. Water Wetter lasts longer but I didn't have any on hand. AF is working fine but I'll be changing out water soon, after 8 months.
Have you ever had mold or algae problems?
When you say water wetter lasts longer than the anti-freeze, what happens to the anti-freeze that indicates that it needs to be changed? Thanks.

stovepipe
 
Have you ever had mold or algae problems?
When you say water wetter lasts longer than the anti-freeze, what happens to the anti-freeze that indicates that it needs to be changed? Thanks.

stovepipe
My water is just starting to get a little cloudy, no mold, figured I'd change it out. No sediment either due to antifreeze.
 
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My water is just starting to get a little cloudy, no mold, figured I'd change it out. No sediment either due to antifreeze.
Thanks Gerry52. That's really good news. I'm going to start using some kind of additive now since you've had good luck for so many years. So I'm off to Walmart to find a bigger bucket -- 5 gallons is a bit limiting when I have to fill 2 45-minute SCBA tanks. I think a 15-gallon container will do the trick. I don't have the option of using ice packs -- no room in the freezer. I think I'll try the Rislone Hyper Cool stuff since it's cheap at Walmart -- pretty similar to Redline Water Wetter. I'll be careful not to mix different types of additives. Thanks again.

stovepipe
 
Thanks Gerry52. That's really good news. I'm going to start using some kind of additive now since you've had good luck for so many years. So I'm off to Walmart to find a bigger bucket -- 5 gallons is a bit limiting when I have to fill 2 45-minute SCBA tanks. I think a 15-gallon container will do the trick. I don't have the option of using ice packs -- no room in the freezer. I think I'll try the Rislone Hyper Cool stuff since it's cheap at Walmart -- pretty similar to Redline Water Wetter. I'll be careful not to mix different types of additives. Thanks again.

stovepipe
I top off my tanks when they get to 3k psi. I have 15, 30, 45 & 60 minute tanks (Yes, 15 minute! Only one I've ever seen, being in the business over 30 years). My 5 gallon bucket never lets temp go above 54C. I do have extra fans for cooling.
 
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I top off my tanks when they get to 3k psi. I have 15, 30, 45 & 60 minute tanks (Yes, 15 minute! Only one I've ever seen, being in the business over 30 years). My 5 gallon bucket never lets temp go above 54C. I do have extra fans for cooling.
I just got back from Walmart with a Hefty (brand) 72 quart (18 gallon) clear rectangular plastic storage bin and 4 16oz bottles of Rislone Hyper Cool super coolant (the Rislone version of Redline Water Wetter). Here's what my system looks like with the 5 gallon bucket. The 18 gallon bin is 24" x 16" x 14" (same height as the 5 gallon bucket) and will sit in place of the 5 gallon bucket and the SCBA tanks will be stashed under the table to the left. I'll be using 15 gallons of water in the 18 gallon bin. The lid of the bin I bought is not an air-tight seal, but it's good enough to keep dust out of the water -- maybe a bad choice, but I like the dimensions. I'll only need 3 of the 4 bottles of the Rislone hyper cool stuff ($7.38 per bottle).

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I always shut down the compressor when it hits 55 degrees C because it'll keep climbing if I don't. I do it in a nice way opening the high pressure side of the compressor and letting it blow air for about 30 seconds -- it helps dry the check valve and cools the head and pipes and high pressure side down a little. Then I open the low pressure side to blow water out of there and watch the head temp start dropping until it levels off, then I turn off the power to the compressor, but leave the water pump running and the (hard to see) 234 cubic feet per minute electric fan that is bolted onto the rear of the compressor. When I'm filling anything, SCBA tanks or rifles directly, I always have that condenser filter (I call it the rocket filter) in line and always have the check valve / bleed valve combo in line as well. That way I don't lose any pressure when shutting down the compressor. But I really bleed the rocket filter frequently -- a blast every few minutes and it does a super great job of keeping moisture out of my tanks and rifles. There's never been any sign of moisture in my maverick or tanks. Even though Idaho is not a particularly humid state, you'd be amazed at how much water that rocket filter spits out during a fill. Anyway, the point I'm getting to is that a lot of my run time is actually catching up on the pressure lost because of all the water purging I do during a fill. So I spend a lot of time during "compressor off" mode emptying 3 gallons of warm water and replacing it with cold water using the milk jug and the bath tub that is 10 steps away. I'm being a real "chatty Kathy" right now because I'm excited about not having to deal with the pain in the butt stuff anymore. It sounds like your system has been efficient all along. My compressor works fine -- no leaks, etc. I just kind of "waste?" a lot of air. Thanks again Gerry. Cheers!

Update: I don't recommend the Hefty (brand) 72 quart (18 gallon) clear rectangular plastic storage bin. With only 13.5 gallons in it, the sides bow out and the lid doesn't keep it from doing so. Of course any round bucket won't have this problem.

stovepipe
 
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Dang! You've got a LOT of fittings between the compressor & your tank! Imho & experience the less fittings, the less chance for failure. There are ways to streamline that setup. I have a check valve on my tank fill adapter so I don't lose pressure from my tank when I bleed moisture during filling.
 
Dang! You've got a LOT of fittings between the compressor & your tank! Imho & experience the less fittings, the less chance for failure. There are ways to streamline that setup. I have a check valve on my tank fill adapter so I don't lose pressure from my tank when I bleed moisture during filling.
Yup. It's quick-disconnect city. Trying to do anything to streamline it would cost more money, and since it works and doesn't leak, it's just what I've got for now. I'll clean it up one of these days.

stovepipe
 
Three gallons of premixed antifreeze mixed with two gallons ogmf distilled water in a tote with the pump tube's going in and out of it is all I've ever used. I may replace it this year, but realistically it probably isn't needed. Antifreeze has been proven in the automotive world with a mixture of aluminum, brass, cast, and stainless for decades. These units don't get hot enough for the benefits of Water Wetter or the like.
 
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Three gallons of premixed antifreeze mixed with two gallons ogmf distilled water in a tote with the pump tube's going in and out of it is all I've ever used. I may replace it this year, but realistically it probably isn't needed. Antifreeze has been proven in the automotive world with a mixture of aluminum, brass, cast, and stainless for decades. These units don't get hot enough for the benefits of Water Wetter or the like.
I won't spend money to make my water wetter, because you are correct. I will squirt a little Jet dry for dishes in and it's unlikely it does much but it won't do any damage either. A splash of laundry bleach to keep the critters at bay. The key to keeping them cool is plenty of water. Any old water will do! :)
 
I'm using a 16 gallon pet food barrel, filled with soft water and an upgraded aquarium pump. That's it. It's all about volume.

View attachment 501395

The temperature gauge on the compressor won't exceed 34 degrees Celsius when I fill my air cylinder to 300 bar.

That's waaaaay below the mandatory shut off temperature.
Which aquarium water pump are you using? Do you have a link to buy it? What is the flow rate? More importantly, what is the lift (head)? Lift (head) is an indication of pressure provided by the pump.

stovepipe
 
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Which aquarium water pump are you using? Do you have a link to buy it? What is the flow rate? More importantly, what is the lift (head)? Lift (head) is an indication of pressure provided by the pump.

stovepipe

I'm using the "EB-304", which has a flow rate of 800 liter per hour and a maximum lift of 1.6 meter.

It's an awesome little pump!

 
I'm using the "EB-304", which has a flow rate of 800 liter per hour and a maximum lift of 1.6 meter.

It's an awesome little pump!

Thanks Tuinschutter. The reason I asked about your upgraded water pump is because I'm following your lead and I'm now using a large container with 20 gallons of water -- I could add another 5 gallons easily since it's a 32 gallon rubbermaid trash can. The water is room temperature -- no ice and just stagnant in a room that is about 70 degrees F. I did add Rislone Hyper Cool just to avoid mineral deposits and/or corrosion and hopefully avoid algae and mold as well.

So I'm shopping for a water pump and a water temperature gauge for my big-assed bucket of water. My original Yong Heng water pump just pumps too slow to get the full benefit of a large quantity of water that starts out at room temperature.

stovepipe
 
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Yup, that's exactly the reason why my original pump didn't even get unpacked and ended up in the trash container. 😅
The slower original Yong Heng water pump actually seems quite reliable to me and perfectly adequate if it's moving cold tap water or water with ice added. I'll keep my original as a backup. I'm really surprised that your YH stays under 35 degrees C during an scba tank top-off with an 800 liter/hour pump and starting out with room temperature water. That's good news, though, because it means we really only need a pump that moves about double the amount of water as the original -- not a crazy amount more. Also, something I just noticed when looking at the really high-flow pumps, like the 800 GPH pumps is that they get hot and warm up the water according to fish tank owners, so that's a bit much. The one I'm looking at now is this 320GPH pump that already comes with a 3/8" fitting that should be OK with 1/4" tubing of the yong heng.


I like that it has a long power cord (12 feet). It's going to be interesting to watch the water temp changes in relation to the compressor temp. I do give my compressor a break every 10 minutes or so (like 10 on and 5 off) and I'm hoping to see the water temp actually drop during the off-duty period with my electric fan and water pump still running, just not the compressor during the off period.

OK, I'm rambling again -- happens every time I drink coffee at midnight.

stovepipe
 
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