Josh was correct in that PEX and QEST are different and my experience was with the QEST piping originally supplied on my boat. It leaked quite frequently over the early years and, unless you live aboard like we do, you would probably never notice it. We noticed it through the cycling of the fresh water pump.
Throughout the many years I’ve owned my boat, I relocated (and replaced) the fresh water pump from its original location under the galley sink to a place in the engine compartment aft of the quarter berth—mostly to cut down on pump noise. In this location it is more likely to freeze in cold weather but as I’ve mentioned previously we avoid being subjected to cold weather. I completely agree with the notion that any piping system other than simple hoses and hose barb connections are over-engineered unless your boat never leaves very far from your home base. If you cruise, being able to make your own repairs is very important. Bob Bob Boyer s/v Rainy Days C&C Landfall 38 (Hull # 230) (Presently in Charleston SC for the winter) blog: dainyrays.blogspot.com email: dainyr...@icloud.com > On Jan 31, 2019, at 8:46 AM, David via CnC-List <cnc-list@cnc-list.com> wrote: > > Josh, Bob (and others), > > Thank you. I was thinking simple plastic barbed fittings with reinforced > hose and hose clamps are simple and effective. My only concern, from > reading, is the hose not being opaque enough to eliminate any growth in the > lines. But then, these water hoses are all hidden and out of the sun so no > issue there (I believe). > > The PEX and Sharkbite systems all seem to be an expensive, over-engineered > solution for this simple application. Which is why I asked the question to > begin with. > > Thanks again. > > David F. Risch, J. D. > Gulf Stream Associates, LLC > (401) 419-4650 > > From: CnC-List <cnc-list-boun...@cnc-list.com> on behalf of Josh Muckley via > CnC-List <cnc-list@cnc-list.com> > Sent: Wednesday, January 30, 2019 11:37 PM > To: cnc-list@cnc-list.com > Cc: Josh Muckley > Subject: Re: Stus-List Replacing Water Lines... > > Shark bite is one popular manufacturer. They are typically metal fittings > and considerably higher cost compared to the plastic alternative made by > Watts. Both are significantly more expensive than the barbed fittings and > crimp. > > In residential settings one of the significant cost advantages is the "home > run" topology. Since the tubing is flexible, elbows and tees are no longer > needed like they would be on a copper installation. Similarly the time > associated with assembly is reduced considerably. One continuous pipe from > source to destination. The bend radius and methods of securing the tube/pipe > in place makes the "home run" a bit more challenging on board a boat. > > A home run using a flexible drinking water hose product like that made by > Shields or Trident is my choice. The flexibility coupled with the freeze > protection and durability all and up to a quality and lasting solution. Use > barbed brass fittings and clamps. It sounds like this was Bob Boyer's > solution. > > Trident #162, 163, 164, or 165 > https://tridentmarine.com/product/trident-reinforced-pvc-hose-164162/ > > https://www.westmarine.com/WestAdvisor/Selecting-Marine-Hoses > > This is the lowest price per foot I could quickly find... And it is more > expensive than PEX. > https://www.amazon.com/dp/B004CR4OP4/ref=cm_sw_r_cp_apa_i_zONuCb7PXTPM7 > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > > > On Wed, Jan 30, 2019, 11:00 PM Rick Brass via CnC-List > <cnc-list@cnc-list.com> wrote: > I’ve done a couple of plumbing and landscaping projects using PEX tubing. > Lowes and probably Home Depot sell a fitting for PEX tubing that uses small > teeth where the fitting engages the tubing and requires no special tool. You > simply push the fitting into the tube. I’ve not had any leaks I know of. I > can’t recall the brand name. > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of David via > CnC-List > Sent: Wednesday, January 30, 2019 10:06 AM > To: CNC CNC <cnc-list@cnc-list.com> > Cc: David <davidrisc...@msn.com> > Subject: Stus-List Replacing Water Lines... > > I am sure this has been gone over before...so please indulge me. > > Replacing, re-designing, water lines in 1981 40-2. Pex is the obvious > choice. Are there less obvious (and have cheaper tools required to install) > choices? > > Has anyone improved on the original design? I am thinking of adding easier > accessible manifolds and an additional line for antifreeze and blowing out > water. > > Thanks in advance. > > David F. Risch, J. D. > Gulf Stream Associates, LLC > (401) 419-4650 > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray >
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