[Dust]

Thought that after JettaRed's check valve problem, it might be a good idea to get a topic like this started. Everyone, what did you do/use to clean out your washer tank before or during your WAI use? Removal and scrubbing, chemical, nothing, please post up.

[dvldoc]

The most common debris are little pieces of plastic from were you drilled on a new tank or crap that has just been collecting in the tank over the years, It may not appear solid when you look into it but just might be gummed up at the bottom this stuff can collect in a nice little ball and get pushed through the system

When I do a install I drain a stock washer fluid tank and flush it out with a high pressure hose. If it's easy to remove then I do it with it off the vehicle. Limeaway or similar products works great for getting it looking like almost new on the inside But Limeaway is my choice for cleaning washer fluid tanks, 6 month pump flush, and nozzle filter cleaning. Just fully flush out everything before connecting back through the vehicle.

[JettaRed]

I've had a couple of times when really small stuff that may be in the bottom of my washer tank gets sucked up and passed through the pump. I'm pretty sure the debris was plastic bits from drilling the hole. It passes through the pump and gets caught in the check valve, preventing a good seal for when the pump is off and causing vacuum leak symptoms.

Here is my solution. It's a Purolator fuel filter (part no. F20011) installed on the intake side of the pump. The 1/4" lines fit snuggly inside the barbs of the filter. It will also act to catch any air in the line, though I haven't had any problem like that.

[JettaRed]

OK, here is your original post, dvldoc:

Originally Posted by dvldoc

Limeaway is 30% Phosphoric Acid the seals on the pump can handle 80% so you don't need to dilute it, Just make sure you flush the system out.

And of course you don't have the nozzle holder connected to the hose you just let it run through the pump and drain into a container. Let it sit for 30 minutes and flush it out. Also great for the nozzle filter as well just put it in a little cap of it and then rinse it off. Keeps it nice and clean.

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Stationed on the Island of Guam.

I figure this gives a little more info. Thanks for making this a sticky.