PH II Maintenance

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John J

Peggy, in your discussion of maintenance on the PH II you talk about using lube for the piston and valve. There are no directins on how to go about doing this. Do you remove the flush handle seal at the top of the pump, or do you take the whole pump off from the bottom 4 screws. If from the top, there is another part of the assembly that gets in the way of removing the top piston seal. Just looking for guidance before taking things apart. And thanks for pointing me in the direction of the PH II, great choice. Thanks in advance John
 
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Stan Galper

It's easy !!!

I lubricate my PH II every time I leave the boat. I rub a drop of teflon lubricant on the piston shaft to lube the shaft and its seal, then pour an ounce of vegetable oil into the bowl and pump it through. It only takes a minute and keeps everything pumping smoothly. I use Wesson oil because my boat gets the best of everything - but any old veggie oil should do.
 
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Peggie Hall/HeadMistress

Once a year is a lot easier than weekly...

But if you prefer the never ending weekly battle of pouring something down the toilet that washes out in a just a few flushes, use mineral or baby oil (which IS mineral oil)...vegetable oil gets rancid while the boat sits in the summer heat. And fwiw, the dab of teflon lubricant on the shaft is wasted. Lubrication is needed to protect the outside edge of the seals and o-rings and the inside of the pump cylinder...none ever makes it there from the piston rod. The ounce of Wesson Oil is only thing that is offering any protection/lubrication. As for how to lube the PH II annually, you do have to take the pump off the base. Put a HEALTHY squirt of synthetic based teflon grease inside...put the pump back on the base...pump a few times in the dry mode to spread the grease all over the inside of the cylinder...you're done till next year.
 
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Ed Ryan

Peggy - What about using the air valve

Peggy, I recall at one time you recommended removal of the air valve at the front of the pump, and to use that access to squirt the SuperLube to lube the PH II pump. That sure is easier than removing the pump assembly. What are the pros and cons of this method versus removal of the pump assembly? Ed
 
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Peggie Hall/HeadMistress

It can be done that way...

But I've changed my mind about doing it that way because the hole in the pump body after you remove the valve isn't much bigger than the hole in the valve...you can't get much grease into it at a time, and it takes quite a bit of pumping to move it into the pump from the wet/dry valve housing. I wish Raritan would put a threaded plug in the pump housing...it would make lubricating it so much easier!
 
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Terry Arnold

phII air valve greasing

Since Peggie earlier suggested greasing through the air vent of the PHII I have been doing this and it works ok for me. I use a grease with a long nose which puts out just a thread thickness of the grease and that seems to do the job. If I grease too much, the grease just shows up in the bowl. Sure a lot easier than disassembling and can be done as needed. Thanks Peggie.
 
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Peggie Hall/HeadMistress

If you can get the end of the grease tube into

that little hole, great. That definitely is the easiest way. Just make sure you buy a grease that has a long skinny "snout." Use small amounts at a time, pumping enough between "shots" to pull it out of the wet/dry valve housing into the pump body. Too much at once may be the reason it's ending up the bowl. And btw...while you have the air valve out, it's a good time to clean it.
 
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