Where to locate mister tank

Scott & Heather · September 20, 2016, 02:41:41 PM

I'm building my mister system right now in a parking lot. I've already removed our radiator shutters and foamed the remaining air gaps at the radiators to try and resolve a very minor heating issue. Coach was pushed to almost 500 hp and of course I'm having slightly elevated heat levels in the south (it's 91 in Georgia today). Had some pretty large gaps that weren't closed after the radiators were recored. Took care of those. Tightened fan belt. Cleaned the belt and pulleys of all the 40 weight that sprayed out of blower gearbox vent when I overfilled. And finally installing misters. Next summer I'll install a separate trans cooler and smaller fan pulley. Here's the question:

Where are you guys putting your mister water tank? And how are you running lines from it to your radiators?

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eagle19952 · September 20, 2016, 02:46:44 PM

i would tap into my domestic supply. possibly thru a check valve...

lvmci · September 20, 2016, 03:30:36 PM

hi Scott, I have a water manifold, I took a pex line, ran it back to the engine compartment, put a cordless 12v remote switch fob ( from frys or amazon) at the drivers seat, opend the manifold valve for the mister before the trip, approaching a mountain I turn it on, off going back down, lvmci...

Scott & Heather · September 20, 2016, 03:31:05 PM

Hi don. I think I'm going to use a separate tank so I can feed it distilled water.

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Scott & Heather · September 20, 2016, 03:32:05 PM

So how did you get a pex line from luggage bay to engine compartment? This is the difficulty. Are you getting under the bus and running it down near the driveline?

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luvrbus · September 20, 2016, 03:46:59 PM

You can buy a small tank @ Tractor Supply with the pump that you can mount in the engine compartment I forgot the cost but wasn't all that bad

lvmci · September 20, 2016, 03:52:41 PM

I took a rear facing manifold hole ( my utilities are in the rear bay), brought it to the wall of the bay, went up thru the floor, turned directly back at a right angle into the engine compartment, covered it with water pipe foam, at the rear engine start box, a right angle, just below the left side radiator box, split the pipe in the box, to the right side, went under the surge tank to the other side, got the 1/2" heavy 2' pvc pipe and the same size, premade mister couplers from HD, drilled out the mister to 1/16", put 3 on each side and capped it off, there is a premade pex to pvc pipe, hardest part was drilling g out the brass misters, tom...

Scott & Heather · September 20, 2016, 03:58:19 PM

Wow. That was detailed. I'll read this ten times before I get what you're saying. Cliff, doesn't the water in the tank if located in engine bay compartment get too hot? Does the water temp matter?

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luvrbus · September 20, 2016, 03:58:43 PM

I don't how you guys deal with a bus that runs hot I couldn't, I would have to find the cause

Scott & Heather · September 20, 2016, 04:03:18 PM

Cliff, it didn't until we bumped the fuel

😎

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Scott & Heather · September 20, 2016, 04:03:56 PM

As you can see, it doesn't run hot, just a little warm on the longer grades

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luvrbus · September 20, 2016, 04:16:11 PM

Scott evaporation should cool it but they way I read it on the board is people flood the radiator with water using a low pressure pump.Our misters at the restaurants use a high pressure pump and you don't see the mist lol that would piss a lot people off trying to eat in a rain storm.I really never had a need for a mister system on my buses over the years but I can understand some using 1 though

Scott & Heather · September 20, 2016, 04:26:43 PM

I have spent a couple of weeks scouring the archives on our forum and BNO too. The general consensus from what I've read really promoted misting versus flooding because the misting acted as a system that cooled the incoming air versus trying to cool the rads by flooding them which is more of a thermal transfer thing and frankly that system could go through 100 gallons of water in a long hot day of driving and I'm not really for that. Just wanting an extra layer of protection just in case I'm in a jam and need a mister. We really really like this bus and would like to keep it cool and happy.

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lvmci · September 20, 2016, 04:34:01 PM

Scott, I used a straight Mister system with the same misters from Home Depot, without drilling out the hole and that was on an 8 V 71 with good radiators and I still had heating problems, course living in Las Vegas and driving and every Direction having mountains to climb, it was hard on the engine, but when I went to build this with a 8V92 engine I decided to drill out the whole to use heat transference instead of misting the air and cooling the air down to the radiator and it's actually working pretty good, taking Clifford advice, I will rebuild my fan box and replace my older radiator, but till then this helps alot, lvmci...

chessie4905 · September 20, 2016, 05:02:41 PM

If you have a demand water pump, why not tap into your water line and install a solenoid in the mister line. I wouldn't bother with a distilled water line. The volume of water you use on a trip is going to require a rather large tank and unless you can procure the d water free, it is going to be costly. I've been reading about mister systems for several years and mineral build up wasn't reported to be a major issue. You could treat the radiator occasionally with Like away if it is an issue for you.