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Yeah, that woks to cool the bottle, but if you use a coil in an icewaterf bucket, your tank will never be hot to begin with.

My biggest "problem" has been over filling recovery tanks. Use your...

I don't really think you will get that much gravity draining unless you use large diameter tubing.

I have valves on both ends of my worm, if I have to, I can valve it off and move it to the other...

To fill the bottle you can use either port ... vapor or liquid is only in play when taking refrigerant from the bottle.

Unfortunately the egg shape of the bottle is the hardest shape to cool the contents of ... that's why eggs are that shape.

The length of tubing in ice water is the way to go.

You'd have to deal with pumping liquid thru the recovery machine. Not all of them can do liquid.

To clear the liquid, remove the worm from the water ... also try to keep the coils top to bottom...

I used to do that ... it doesn't compare to a coil of tubing in a bucket. Give it a try.

I love my Luger/FEG clone of a Browning/FN Hi Power. $250 on Gunbroker

I keep it in my cabinet right next to my PSL rifle ... yeah the Dragunov clone

I made one a few years back and posted info here on HVAC-talk.

5 gallon plastic bucket, 50 ft of 1/4" tubing with flare nuts and valves on the ends.

Just today I considered it can also be used...

Always pull from both sides

If its under 1,000 I doubt you have moisture. Constant rise indicates a leak. You will have an initial rise after closing off your pump ... after the initial rise stabilizes that's when your blank...

usually the end of the flare is smashed over into the hole by someone over tightening the cap ...

If the core turns freely, I file a little off the end of the flare, just the part smashed in to...

There are manifold trees (yes I meant TREE) to put at your pump that have valves for blanking off. I think Robinair and JB both make them in several styles.


I haven't checked lately but there...

It would, but it would work even better if you went to 3/8 copper and a 3/8 x 3/8 x 1/2. Any size reduction or length is cap tube effect slowing down your evacuation ... has more affect than the...

I've been using the big black 3/8 with 1/4 end hoses about 30 years also. straight 3/8 on both ends between the manifold and pump. Had a special 3/8 flare by 1/8 pipe high flow fitting custom made...

I have found ultra sonic devices helpful at times when other methods were failing, but I've had less success with it than with refrigerant detectors in general. The ultrasonic transmitter is not...

After you have done your best pressure leak test, a good vacuum gage can be the final test of system integrity.

Static vacuum and not running vacuum is the real test.

My understanding is that if it was hooked up before the electric meter, there would be significant savings. The real argument is between big users and utilities over whether this could/should be...

I had to replace a weak hsi earlier this week ... ohmed out at 140-145.

Was giving us intermittent lockouts.

In the past I have successfully dehydrated water source heat pumps that had half a gallon of water in the compressor alone using the steps outlined above. I removed the compressor and blew out the...

The only way to know if all the moisture has been removed is to use a micron gage. Not only should the reading be low, it should hold when the pump is valved off. In my experience water freezes and...

Depends on how tight the building is and whether there is venting for it somewhere. Some RTU's have barometric dampers for economizers, some shops have exhaust hoods for special welding, heating or...

Isn't Newark any part of New Castle county that isn't in another town? ... Just kidding but it seems that way.

I'm down in Annapolis

I have no idea, I am not in the loop on that

Frame 4 type unit, pretty sure it has an isolation valve, so I should be able to pump all the refrigerant into the low side and replace that sensor.

Same model chiller ... different building ... I have one with a bad oil sensor in the bottom of the separator. Do I have to recover the whole charge and oil to replace this sensor?

I thought I saw...

Plastic body barometric pressure switch. They can also have clogged filter switches. A clogged filter switch will have 2 hoses. One going to each side of the filter rack.