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Old 04-21-2010, 07:39 PM   #1
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Monaco Owners Club
Join Date: Dec 2009
Location: Pendleton, OR
Posts: 66
Manobloc Manifold Leak

On our 1st week long trip to the Oregon coast with our 01 Windsor 38 PBDD, the Vanguard Manobloc water manifold is leaking between 2 of the sections. Also the clamping block on the bottom that the bolts go through to hold it together is broken. Do any of you know where to order parts for it? I called Northwest RV and they don't have it.

Rick & Elaine, Tess our Mini Schnauzer
01 Windsor 38 PBDD, ISC 350, 2 Slides
05 Silverado Ext Cab 4x4, US Gear Tow Brake
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Old 04-21-2010, 08:05 PM   #2
Join Date: Oct 2009
Posts: 86
Monaco. Had our Imperial's Manabloc manifold replaced there awhile back. Seems a previous owner had decided to replace the original Manbloc manifold with a homemade manifold. Go figure.
2000 HR Imperial 40' DP w/350 Cummins
AFE air cleaner & AeroTurbine muffler
Koni FSD's all around
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Old 04-21-2010, 08:14 PM   #3
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Location: Centerville, Iowa
Posts: 246
Vanguard Parts

Google Vanguard Manabloc and you should get the website for the manufacturer, who can direct you to the nearest dealer. Very common item in the plumbing trade. Very good quality and excellent service from Vanguard.
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Old 04-22-2010, 08:46 PM   #4
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Location: Medford, Oregon
Posts: 19
Manoblock manifold leak

Not sure if you have been able to get your manoblock fixed or not but the same thing happened to our 99 Windsor on our trip to AZ. We were on the road and called a couple of repairmen (both who said they were in the business for years but could not help us). I ended up crawling under our rig in the bay and found a phone number. I called that number because neither Monaco nor Northwest could help me. Monaco had a back order on the manoblocks, none in stock. I called a company who manufactured the manoblock. Viega NA, Inc., phone 1-800-976-9819. The internet site is, e-mail This was in January of 2010. I cannot say enough about their courtesy and willingness to help us. They UPS overnight shipped us what we needed, my wife and I put it in and we were on our way. They (VIEGA) are great people to deal with. Let me know if this helps you. Jim Wehren, Medford, Oregon
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