Apr 24
Inlet Cover
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96 POLARIS XCR 600 SP WATER INLET COVER.3085246 |  |
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US $17.00 | 12d 22h 5m |
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96 POLARIS INDY XCR 600 WATER INLET COVER 308246 | |
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US $12.75 | 24d 13h 26m |
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Polaris Indy XCR 800 600 700 Ultra SP Water Inlet Cover | |
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POLARIS WATER INLET COVER XCR 800,700,Ultra 1997-2003 | |
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US $49.99 | 15d 22h 13m |
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Inlet Cover
External oil pump pressure relief question?
In order to fit a Ford motor into a car for which it was never designed, I have reversed the sump, ditched the internal oil pump and fitted an external gear pump. In the US Peterson manufacture a remote oil pressure regulator for use in Nascar and other motor sports useing dry sump set ups but as I am in Australia I cannot buy a remote regulator and so I have machined one up and have used the spring and poppet from the original Ford oil pump and made it adjustable. In the Ford oil pump the leakage past the poppet flows to the pump inlet, is this the best place for me to plumb this too or is it better to run it to the rocker cover or the sump. My concern is the oil above the poppet may restrict the sudden movement of the poppet and may be affected by vacuum pressures in the suction line.
"In the Ford oil pump the leakage past the poppet flows to the pump inlet,"....... This is fine as long as you know the oil that is vented will not build up in the line and will flow freely back to the inlet, but this could be a problem with any of the arrangements that you mention.....it all depends on the location of the pump.
I would be tempted to relieve the vented oil thru the rocker cover.
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No items matching your keywords were found.
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96 POLARIS XCR 600 SP WATER INLET COVER.3085246 | |
|
US $17.00 | 12d 22h 5m |
|
96 POLARIS INDY XCR 600 WATER INLET COVER 308246 | |
|
US $12.75 | 24d 13h 26m |
|
Polaris Indy XCR 800 600 700 Ultra SP Water Inlet Cover | |
|
US $12.99 | 26d 1m |
|
POLARIS WATER INLET COVER XCR 800,700,Ultra 1997-2003 | |
|
US $49.99 | 15d 22h 13m |
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Wave Ocean The Inlet/COVER
Dangerous Spas
Most people are familiar with a horrible story about a spa accident that has gone completely wrong resulting in a severe injury or even a death. However, usually a lack of understanding about the cause for such accidents makes the reporting a bit vague and means the reason for these accidents is not properly explained.
Though I agree that there is some danger in spas, such danger is very easy to fix and correctly designed spas are not in any way a problem. Most problems occur in spas that are built into the ground as a part of a pool. The major problem with inbuilt spas is that buried plumbing poses a major maintenance issue for possible leaks or cracked piping that may occur in the normal service life of a spa. That is why today most home spas are portable spas (see Portable vs In-ground). In fact over 90% of home spas sold are portable spas.
The cause of most accidents is an unprotected suction inlet to a high pressure pump. The force of the suction can easily trap a small child causing drowning in some cases. However, this issue should never occur if the proper design considerations are taken into account.
Design Considerations
Well designed spas have several lines of defense against a dangerous suction situation occurring. Firstly, all suctions need an approved suction cover installed and not easily removable, such as the one below.
Because of the large size and small holes it is impossible for anyone to be trapped by the force of the flow. However, the secondary safety feature is that they should always be installed in pairs so that any restriction in one means the other takes over and the maximum suction on any one will always be at a safe level (see picture below).
Inexperienced or unqualified pool builders sometimes miss this point.
Further, the filter inlets are usually on the circulation pumps and they are of such a small size in good spas that they pose no threat at all. Suction levels on these inlets are so small they have almost no suction. Even so, there are design rules that stipulate a pressure bypass as a part of their construction. So have no fear modern portable spas are safe - but you should be careful in spas at resorts in far away places. Safety inspections and concerns are not uniform across the world.
When buying as spa it is advisable to deal with a reputable company and you can ask to ensure that a local Safety Certification is in place for the spa you are buying.
For further information go to http://www.spasplus.com.au/How-to-build-a-great-Spa.html
About the Author
Kobe Taylor has a lot of experience in the health care business, being involved in a spa with his partner. He also takes out time to write articles and educate people about what he knows about spas and other related topics.
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