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Old 05-23-2010, 11:25 PM   #1096
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Gulf Island Building.


Right, I've been doing more diddling, much more in fact.

I took the pump off and just tested it by itself - no tubing attached - to see if it was OK.

Apparently all was well.
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Old 05-23-2010, 11:28 PM   #1097
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Gulf Island Building.


But you're just not a true diddler unless you try the other pump as well.

Even though these two pumps just happen to be by the same manufacturer and bear the same pump number, they aren't the same.

The pump which came with the tile saw has a much smaller outlet on top and feeds a smaller tube. So the volume of water coming out of what is a fountain pump is considerably more.

Of course, all of that means nothing when they go through the same size tubing. All of a sudden there's no difference in flow.
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Old 05-23-2010, 11:30 PM   #1098
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Gulf Island Building.


So the next step was to connect the pump to the tube which feeds water to the blade, just the first tube, not the splitter assembly. That way I eliminate one thing at a time.
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Old 05-23-2010, 11:32 PM   #1099
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Gulf Island Building.


So far, so good.

Next was to hook up the splitter with the two lines - which I have removed from the saw.

Still looks to be working OK.
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Old 05-23-2010, 11:33 PM   #1100
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Gulf Island Building.


Next was to hook it up to the blade guard, but this time without the actual mount that they use to hold the tubing in place.
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Old 05-23-2010, 11:36 PM   #1101
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Gulf Island Building.


Take a close look at that last pic. Notice that the tube on the near side is not cut to match the angle of the side of the guard.

When I dis-assembled the splitter, I discovered that they have put an angle on each end of the tubing. The way they had the tubes installed in the splitter, one side was blocking much of the water flow. The other side only partially, but it still could be better.

The splitter is a pretty cool little disconnect gadget, very similar to our standard compressor air lines, only in miniature.

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Old 05-23-2010, 11:39 PM   #1102
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Right, it looks like things should work now.

Here the saw is not running, just the water pump. As you can clearly see, the water is definitely hitting both sides of the blade. Good show.
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Old 05-23-2010, 11:42 PM   #1103
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Both blade and pump are now running full speed. Must be a pretty good camera I have I guess, it freezes the blade and water drops.

But hold on a minute there pilgrim, that water isn't touching the blade at all. So what gives?
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Old 05-23-2010, 11:47 PM   #1104
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Gulf Island Building.


Here's a close-up of the same thing.

I have to admit, I was pretty surprised to see that water not even touch the blade at all.

It's now my guess that the wind generated by the spinning blade puts the blade itself in an air cocoon and won't let the water in.

There are still a couple of things not right. Mainly to do with the tubing I believe.

If I get some copper tubing (or something similar) I will be able to bend it to aim right at the side of the blade, plus I could pinch the tip of the copper (or whatever) so it would make a more forceful spray.

Whaddya think guys and gals?
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Old 05-23-2010, 11:54 PM   #1105
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Another thought I had was to drill a hole - or holes - in the top of the blade guard and run the two lines in there. Theoretically, it shouldn't make any difference, except for the fact that gravity would now be 100% on my side.

The smaller tile saw I have has no trouble at all getting water to the blade. When it is running, the water really flies off the blade. And the blade on that saw runs faster (higher RPM).
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Old 05-24-2010, 09:39 AM   #1106
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Gulf Island Building.


It's now Monday morning and it is a long holiday weekend here. Which means I'm not supposed to be making too much noise until the assemblage of weekenders is actually at least conscious. That could be awhile.

In the mean time, I have been wracking my brain as to what I can find to fix this thing.

After a long and diligent search the only tubing I could find was from the hydraulic steering system from an old boat that is here. So I pirated a piece off it and cut two lengths to give it a go.
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Old 05-24-2010, 09:43 AM   #1107
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Next thing was to smooth the ends of the cuts and run a piece of wire through to clear the cutting debris. Then push the tubing into the plastic to see if it would fit.

One of the pieces had a bend which was too sharp, so I straightened it out a bit using the vise.
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Old 05-24-2010, 09:45 AM   #1108
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Next was the test of the pump to see how the water came out. Looks OK.
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Old 05-24-2010, 09:48 AM   #1109
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Gulf Island Building.


The blade is running, and at first I thought the water was still getting blown off the blade, but thankfully not so.

I tried to take a pic of the line of spray hitting the rubber spray guard behind the blade.

Maybe you can't see it too well, but it's definitely there.
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Old 05-24-2010, 09:50 AM   #1110
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Then I noticed the line of spray off the blade in the water tank.

So all seems to be well in the land of the tile cutters once again.

Now I just have to wait for the unruly mob to wake up so I can get cutting!
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