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02-12-2018, 12:50 AM
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#21
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Bus Crazy
Join Date: Jun 2016
Location: Orange County, CA
Posts: 1,363
Year: 1990
Coachwork: Crown, integral. (With 2kW of tiltable solar)
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
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Quote:
Originally Posted by IWC Bus
So just to jump in here for a minute. What is the pump of choice for most skoolies? I have reviewed so many and I think I am ready to purchase a Shurflo Aqua King ll. I was also thinking about using a Shurflo Pro Blaster ll and run then together (to make a FRESH WATER DUAL PUMP SYSTEM).
I can’t the Accumulator Tank which I have already. I am using a 55-gallon tank and a 45-gallon tank for fresh water, A PEX Manifold. Here is the other big question, can someone recommend a good hot water heater.
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1. The good ol' SHURflo 2088 is still the most reliable pump that money can buy (according to a SHURflo rep!). Other pumps can move more water or do it quieter, but for how long, and how easily can they be repaired or rebuilt?
2. Suburban water heaters use a sacrificial anode to greatly reduce corrosion of the tank. Other brands rely on a coated inside surface of the tank. My gut feeling is that an anode is a better way to prolong tank life - it works well with boat hulls, so why not for a water heater tank?
3. I have a Watts 2-gallon pressure accumulator which seems like a decent product. It can be recharged through its Schrader valve to whatever pressure is needed for your water system, and Lowes and Home Despot have them for cheap.
John
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07-18-2021, 03:47 PM
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#22
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Mini-Skoolie
Join Date: Jul 2020
Location: South Central Pennsylvania
Posts: 34
Year: 2006
Coachwork: Bluebird Chevrolet short bus
Chassis: Chevrolet 3500
Engine: 6.0 Gas hog
Rated Cap: As many as could fit
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can you use PVC for fresh water lines?
I have two questions,
1: can you use regular pvc 1/2" pipe for your fresh and hot water lines ? And if not why?
2: Does anyone have a plans to build an accumulator ?
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07-18-2021, 06:43 PM
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#23
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Bus Crazy
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,968
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
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PVC isn't as freeze resistant or as flexible as PEX but apparently can be used for fresh water supply piping. It can warp when used for hot water supply. PVC will certainly be cheaper and can be installed without buying special tools.
I built an accumulator out of 3" PVC that worked pretty well.
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07-18-2021, 06:55 PM
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#24
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Mini-Skoolie
Join Date: Jul 2020
Location: South Central Pennsylvania
Posts: 34
Year: 2006
Coachwork: Bluebird Chevrolet short bus
Chassis: Chevrolet 3500
Engine: 6.0 Gas hog
Rated Cap: As many as could fit
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Quote:
Originally Posted by roach711
PVC isn't as freeze resistant or as flexible as PEX but apparently can be used for fresh water supply piping. It can warp when used for hot water supply. PVC will certainly be cheaper and can be installed without buying special tools.
I built an accumulator out of 3" PVC that worked pretty well.
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I assume it was just a 3" section, two end cap and a bottom water feed ? and the trapped air does the buffering ?
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07-18-2021, 08:42 PM
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#25
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Bus Crazy
Join Date: May 2010
Location: Farmington Hills, Mi (Detroit area)
Posts: 1,968
Year: 2000
Coachwork: Eldorado Aerotech 24'
Chassis: Ford E-450 Cutaway Bus
Engine: 7.3L Powerstroke
Rated Cap: 19
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Quote:
Originally Posted by Brewmaster
I assume it was just a 3" section, two end cap and a bottom water feed ? and the trapped air does the buffering ?
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Exactly! Here's a picture.
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07-18-2021, 09:46 PM
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#26
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Bus Crazy
Join Date: Jan 2020
Location: Fraser Valley British Columbia
Posts: 1,043
Year: 2007
Coachwork: Thomas
Chassis: Freightliner
Engine: C7 Cat
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Quote:
Originally Posted by Brewmaster
I have two questions,
1: can you use regular pvc 1/2" pipe for your fresh and hot water lines ? And if not why?
2: Does anyone have a plans to build an accumulator ?
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pvc is fine for many applications like drains and traps and even cold supply however it should not be used for hot water supply as it can degrade from high temps.
cpvc pipe is better suited for hot water.
Or better yet just use pex.
Cheers
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07-24-2021, 06:11 PM
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#27
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Bus Crazy
Join Date: Jul 2021
Location: Southern Oregon
Posts: 1,607
Year: 1996
Coachwork: AmTran (Now Navistar)
Engine: DT444E (7.3L) International
Rated Cap: 31,800 pounds
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In a mobile application with lots of bounce, jounce, shock, etc. do you really want to install a rigid pipe system with glued joints? I'm not a fan of PEX in homes but in mobile applications flexible is awesome.
As for water heaters, on demand water heaters are the cats meow. No energy use (some may have parasitic draw for electronic controls) unless being used and are available in both electric and propane versions. As someone who's RV'd for over 3 decades, any suburban, attwood, or other "RV style" water heater is designed to make it to the warranty end time while being used occasionally. Lots of skoolie builds, including some of the top of the line rigs, use on demand propane water heaters. They're awesome.
__________________
YouTube: HAMSkoolie WEB: HAMSkoolie.com
We've done so much, for so long, with so little, we now do the impossible, overnight, with nothing. US Marines -- 6531, 3521. . . .Ret ASE brakes & elect. Ret (auto and aviation mech). Extra Class HAM, NAUI/PADI OpenWater diver
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10-20-2021, 04:09 AM
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#28
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Mini-Skoolie
Join Date: May 2021
Location: AZ
Posts: 12
Year: 2004
Chassis: International CE200
Engine: 7.3 Navistar T444e Diesel
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What if you run copper lines?
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10-20-2021, 06:42 AM
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#29
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Bus Nut
Join Date: Sep 2019
Location: Bly Oregon
Posts: 537
Year: 1986
Coachwork: Crown
Chassis: Supercoach
Engine: Cummins 350 big cam
Rated Cap: 86 passengers?
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In my first conversion the "old Crown" I used copper tubing. It became problematic once it got cold. I have experienced a couple failures due to freezing in the copper lines.
In the new Crown I used PEX. I am finishing up the plumbing these days. PEX isn't all that difficult to work with. My understanding is that is more resistant to splitting than copper.
To use copper in my current design would be difficult to do. PEX also meets building codes and is used in most campers made today.
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10-20-2021, 11:21 AM
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#30
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Bus Geek
Join Date: Sep 2018
Posts: 2,831
Year: 2007
Coachwork: Thomas Built
Chassis: Minotour
Engine: Chevy Express 3500 6.6l
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Quote:
Originally Posted by rockinmeow
What if you run copper lines?
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I was at first skeptical about using PEX. I wouldn’t use it in a house, but it is great in a bus. Easier too.
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10-20-2021, 06:49 PM
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#31
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Bus Crazy
Join Date: Apr 2020
Location: Northern California (Sacramento)
Posts: 1,439
Year: 1999
Coachwork: El Dorado Fiberglass
Chassis: Ford E450
Engine: V10 Gas
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Quote:
Originally Posted by Danjo
I was at first skeptical about using PEX. I wouldn’t use it in a house, but it is great in a bus. Easier too.
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My bus is all pex except for the shower riser. Easy to install, zero leaks (amazingly good fittings). Freezing shouldn't hurt them unless a really deep freeze.
Note that rodents love the taste of plastic, so keep the bus vermin-free!
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10-21-2021, 02:18 PM
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#32
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Bus Crazy
Join Date: Jun 2020
Location: Long Beach, CA
Posts: 1,075
Year: 1998
Coachwork: Blue Bird
Chassis: TC2000, 40' MPV
Engine: 5.9 Cummins/B300 trans
Rated Cap: U/K
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Tankmart is a good source for oddball shaped tanks. I found a 46 gallon tank to fit in a short spot between an on-board generator and a storage bin. I'm also trying to keep the tanks more between the axles. I also bought a Jabsco pump mostly because some upper end coach builders use them. We'll see
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