Recent content by phred113

Here's my theory: The head washout (manifold) falls into a few categories of general chemical erosion, cavitation and age. The chemical erosion is obviously due to chemical and will take out any brass headed pump. The cavitation issue can be from bad plumbing, hot water and bad pump design. The...

If the pump has sat that long, then there will likely be issues inside. The seals may have worn or failed, the carbon vanes completely seated against cylinder wall, or the built-in regulator is fouled. The sad reality of this type of pump is that the 'domino' like vanes are fragile and damaged...

You are correct. An unloader is not a good choice for systems with weep guns. Weep systems are different. Most all unloaders are trapped pressure types that require no water to escape inorder to keep the bypass open. If the trapped volume is lost, then the unloader will cycle, re-pressurize...

I do not understand how you think it could be the seals on a 22 year old pump. The drive end may be on its final legs. Try an Arimitsu 3615 a good, quiet replacement.

Well, now you tell us. Here are some ideas all related to that pump: 1) The high speed pump seals will wear faster due to speed. check those. 2) The velocity of water through the valves is greater, so then will be the washout. 3) The Lovejoy coupler may be worn. Try a smaller tip and see if...

I cannot decide if you improved your goals with the car wash biz or not?

That was not in good taste. Thanks.

GoBuckeyes: I believe you can buy a complete retrofit kit that includes everything you mentioned. The Left and Right shaft thing versus dual shaft is a consideration, but you only have to remember it once! If you are like me, the quiet operation of the Arimitsu is hard to quantify, but is...

The CAT plunger pumps are just converted piston pump designs. We have all come along way in the last 40 years! There are many that do not oil these at all or remove them. The only outcome of removing I have heard is that it reveals oil leaks from the crankcase oil seals that are hidden if the...

MikeV: Are you saying CAT actually replaced something? Did it come with a Merry Christmas greeting? This could be the only explanation I can come up with for their strange behavior.

Don't be silly. Replace all the o-rings.

It's that time of the year when the washes will get really busy and I am wondering if anyone else is planning to stock some Just in Case inventory? I have sort of run out of spare this and that, and need to order critical replacement parts like new pumps, Arimitsu of course, hoses and other...

I will assume from your post count that you understand how plumb correctly - the flow coming out of your offline regulator goes back to the chemical or pump, not to the brush.:) It seems odd to have a high pressure regulator on a low pressure operation. The model of SMC regulator would be...

The outcome was covered in the "310 Heads" sticky thread. At first you claimed Arimitsu did not warranty, then later you confessed that they warranted 1 of 2 of them. Hmmmm. 'Gosh, I took my Lexus through a sand storm and the paint got messed up, and Lexus will not warranty the paint job! Ok...

If you are using the terms correctly, injectors use a lot of 'water' to pull in a little 'chemical'. Eductors use a little 'water' to pull in a lot of 'chemical'. Eductors cannot generate discharge pressure, but are used instead to move large amounts of liquid or sludge. The cheap pit suckers...