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I dont think it's probably more than 5-10 psi. Greg P did a review with mosmatic comfort hose which is similar to 1/4" hydraulic hose. I will say though the hose might wear quicker on a radius like where it connects to the gun since its thinner then 3/8". Overall after two month my customers have loved them especially the women. Very lightweight. As long is it last 6 months that good for me. It's never fun standing on an icy ladder in the middle of February getting drenched with the weep while changing a hose. I change all my hoses before and after winter to be safe.
We have the Mosmatic comfort hoses and we love them. I thought they were a lightweight 3/8" though.
You right they are 3/8”. I was thinking they were 1/4” for some reason. Only reasons I didn’t go with mosmatic is in my area someone might cut them and also I heard a few people say they can kink which can mess up the weep. Not sure how old those were though. I crimp my own hoses so it was just easier to play it safe and buy a reel of 1/4.
When they are new, they have memory from being coiled up. It goes away in about a month, I'm guessing. We never had any kinking preventing weep, but it could be that we have not replaced a new one in winter.
What swivels do you use and do you attach them at the boom and the gun? I have been using the Mosmatic hoses with JE Adams swivels, stainless steel and brass ones. Anyhow, I noticed the hoses will kink at times due to the high resistance of the swivels, these lightweight hoses can't seem to overcome the high resistance. Once my hoses kink, they are more susceptible to kinking again in the same place as before. Also, I noticed the interior of the connectors on the Mosmatic hoses corrode much faster than my other fittings I have on other components at my carwash. Mosmatic stated that it is due to my alkaline content when I am at the recommended titrations for my system. If the other connectors don't show the rust over many years of use, there is something going on with the connectors that Mosmatic uses. Any help would be appreciated.
Totally agree with your observations. Manufacturers often make excuses for the shortcuts they take to save a few cents thinking that customers will not notice.
Ok. 1/4 or 3/8 I’m curious now. What’s the consensus. All mine are 3/8.
We have always used 3/8" from the pumps all the way to the wands. I always wanted to try 1/4" boom and wand hoses and compare the pressure loss with a gauge at the tip. We have 5 second low pressure switchover time currently and about 10 seconds on high pressure functions on the farthest bay which I think is better than normal.
3/8 from pump to manifold above bay. 1/4 from manifold to gun. 3/8 is over twice the volume of 1/4. Changeover time is long enough using 1/4, I can't imagine more than doubling it, not to mention 1/4 is easier to handle. I don't know if my opinion is the consensus, but anyone using 3/8 is wrong, because I say so...
The bigger impact on pressure drop is the tip size. Adjust the tip and you can see the impact to the pressure drop when trigger is pulled.
I would be curious what model KR swivel you use. I went to the CW this morning and noticed the current JE adams swivels (model 7080) I am using will rotate freely when no high pressure is going through the hose. When I select high pressure, these swivels do not turn real free (both on the boom and on the gun). I do think it's these swivels that are causing the issue of kinking my hoses or making a curl when the hose is racked. I will probably go the route you mentioned even if those swivels are more expensive than the JE Adams that I am currently using. All info is appreciated! I will attach photos of the corrosion situation upon a few months in service.
www.kleen-ritecorp.com
I am showing the fitting that comes crimped on the Mosmatic hose. I took another one off today and it looks the same as these do, rusty in color. I know most of the fittings I use are of those that come from Kleen Rite or Windtrax however, I've never had any rust this bad in such a short period of time. I would be curious what the insides of your Mosmatic connectors look like the next time you have one apart. Thx for the swivel info, hopefully that will take care of my problem with kinking. I suppose I need to put one at the boom and at the wand? ThxDo you have any steel fitting or plumbing in your system, the inside of your fittings pictured are full of rust.
We use this ball bearing swivel from KR
Brass Car Wash Swivel | 2000 PSI Swivel | High-Pressure Swivels
This Kleen-Rite 3/8" Brass Swivel can be used in applications up to 2000 PSI. M x F connections. Protect hose lines from kinking and twisting.
Unfortunately, that is normal for the Mosmatic hose fittings.
OK. They must use a lower quality steel than what I am used to. Do you rebuild your KR swivels or just replace? I noticed there is a ball bearing swivel and a mosmatic swivel on their website as well but at a much higher cost. If the KR fittings are working for you, I will probably go that route.
Or cheaper plating on the fittings. We do not use KR or Mosmatic swivels. We are using stainless ones from Car Wash Superstore, which I can't find on their website anymore, and thought they were rebranded JE Adams. I have never rebuilt any, but I do notice in one of our bays that under high pressure, one doesn't swivel like it used to.
