My boyfriend is not actually allergic to dogs, but he's said that some dogs have bothered him in the past. We want a dog really bad, preferably a larger dog, and I was wondering what the best hypoallergenic dogs are?

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Police investigate dead cats
A police investigation began this week after a number of dead cats were found in a vacant house on Ottawa's West Side. On Feb. 19 in lieu of foreclosure, Marseilles Bank took over the two-story wood-frame house at 502

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Feeder Timer

Feeder Timer

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I have a Jack Russell Terrier, just over a year old. I live in an apartment complex where a lot of people own dogs.

When I am walking my dog and he spots another dog, he wildly tries to pull me in that direction. If the dog is close, my dog lets out loud shrill screams and continues to try to pull me. It is almost impossible to control and its embarassing.

Other than that he is very well behaved for a JRT and he is real smart. Just a little wild in certain situations, this being the worst.

So what can I do to control this behavior?
he's not aggressive in a mean way. He just is curious I think and wants to play. But he plays rough with other dogs like wrestling around and nipping (no intent to hurt). If I let him check out the other dog, They sniff, then start wrestling and the leashes get tangled up.

Vacuum Cleaner Pump

Cleaning a rotary vacuum pump.?

Hey, my lab has a rotary vacuum pump as a foreline roughing pump in our Schlenk system, but careless running of the pump without a cold trap has badly contaminated the pump oil. I changed it out today and flushed 3 or 4 times with a small amount of clean oil as recommended, but when I filled the pump to the suggested level and ran it, I had a significant amount of oil vapour and a bit of particulate matter floating around.

What I'm wondering is if there's an easy way to clean out any significant gunk if need be, or if the darkening of the fluid and the vapour after refilling is normal. Also, I now have a litre and a half of dirty pump oil and I'm wondering if anyone knows how to filter and re-distill the stuff so that it can be reused. Its the standard Fisher Scientific mechanical pump oil, paraffin I think.

Thanks!

I've been in this situation before. Flushing w/ new oil is a good idea (and not a small amount, a full fill should be used - or at least enough to get to the lower level line / sight glass. Also let the pump run against atmospheric pressure, not vacuum. This will cause air to be pulled through the pump, heating it up and churning the oil, which will help loosen accumulated solids.) However, if you have a lot of accumulated solids, it may not remove all of them. I would recommend pulling off the pump housing and manually scraping out the gunk. This is fairly straight forward and doesn't require disassembly of the actual pump itself.

I've also had limited success w/ adding some water to the oil to dissolve salts. The problem w/ this is that you really need to be careful about removing all the water. Say you have a pump requiring 500mL pump oil. Add 100 mL water (and the oil too), run the pump for 5 minutes, then drain, add new oil and a water miscible organic solvent like IPA, run for a few minutes, then drain and fill w/ fresh oil. Run for several hrs under load to blow off any residual water / IPA.

Mineral oil based vacuum pump oil is pretty cheap. I wouldn't recommend trying to redistill and reuse.

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Vacuum Cleaner Pump

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Stuckmeyer's Farm Market in Fenton celebrates harvest, Halloween
Stuckmeyer's Farm Market and Greenhouse in Fenton draws church picnic-size crowds during its Farm Fun Days.

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Cutest cats: View and share your photos of the smartest looking cats in the region
It's time for cats to get the spotlight. Whether it's calico or a Siamese, cat lovers have a special affection for these creatures. Load and view photos of the region's cutest cats. Prettiest pooches

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Aquarium Air
Commentary › Fury at Kyoto Aquarium plan
The construction of a mammoth aquarium in a much-loved public park in Kyoto is stirring up discord in the ancient “city of peace and tranquility.”…

Aquarium fish tank submersible air pump with blue LED's

Aquarium Air