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I think=20 that there is less resistance in the core, than there is in the AN16 = hoses,=20 which is why it is not forcing it to the bottom.

&nbs= p;

When you = restrict the=20 end of you garden hose, doesn't it force the water to go farther=20 :-)

&nbs= p;

FWIW, I'm using AN12 on everything. My = inlets and=20 outlets are on the bottom, which is the only place they can go and fit = in the=20 cowl. Since yours are on top, you won't have to worry about = putting in an=20 air bleed like I did, which is good. =20

= ;

BTW, I = have no speed=20 reducer on my pulleys, and up until recently (when one of my adapters = started=20 leaking) I had an EWP in series. When I turned the EWP on without = the=20 engine running, the sound of water rushing through the engine was = amazing. =20 It's probably doing the same thing with the engine running, but you just = can't=20 hear it. Always great fun to wait until someone is standing in the = hanger=20 looking at the engine, then kick on the EWP :-) =20

Unless=20 someone has a better idea, I think that I’m going ahead with the = tubes in the=20 core.

I still think = you're going=20 to waste a lot of time and effort on this for nothing. = What makes you think the tubes are there for = any real=20 purpose? The cores I got had aluminum tubes welded in place, = with=20 special fittings on top. Out of the 5 cores that I made up, I = don't think=20 any two tubes went the same distance into the tank. My impression = is that=20 someone forms the fitting, and any bends that are needed, then whacks = off the=20 tube at some ballpark length. They then stick it into = the core=20 until the fitting is at a prescribed height. I doubt = they care=20 how far the tube extends into the tanks, so long is it's far = enough to=20 weld, and not so far that it hits the other end of the tank, = or waste=20 tubing.

If you just = insist <G>=20 on doing the tube thing, May I suggest the=20 following: Hot liquid rises, which is why we're = saying it=20 stays on top. Why not leave the inlet alone, and put the = tube only=20 in the outlet side, so it extends within a couple inches of the = bottom. =20 This will be the equivalent of the ideal system, where hot water = comes in=20 the top of one tank, and cooler water goes out the bottom of the = other=20 tank. This is probably more beneficial for an installation=20 with both fittings on top than it is for both fittings on the = bottom. =20 The downside is that you'll need that air bleed on the outlet=20 tank.

Cheers,

Rusty = (making the new=20 EWP fittings)

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