Tip & How-To about Intex Krystal Clear Model 635 Pool Filter Pump 1500 Gph

How to Choose the Right Swimming Pool Filter?



There is a lot of confusion about various filters, many different opinions, and several important facts to consider. The first is that a pool can be properly maintained with any of the filter systems available: Sand, Cartridge, or Diatomaceous Earth (DE). Here is a brief description of each type:

SAND FILTERS
Water is pushed through a bed of filter sand and removed through a set of lateral tubes at the bottom.
The filter area of a sand filter is equal to the area of the filter itself.
For example, a 24" filter will have 3.14 square feet of filter area. Only the top 1" of sand is actually used to filter the water. The principle behind this filter is that water is pushed through the filter sand, somewhat like an espresso machine. Dirty water goes in the top and clean water exits out the bottom. As the filter sand becomes plugged with debris from the pool, the pressure increases on the filter and the water flow drops. In order to clean the filter, you just run it in reverse and dump the waste water; this is referred to as "backwashing" the filter.
How to Choose the Right Swimming Pool Filter Pool filter reviews

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Different solutions you may find out here:-
http://www.filerepairforum.com/forum/cad-tools/cad-tools-aa/dwg/444-%E2%80%8Berror-cannot-open-file-open-cad-drawing-dwg-format - a lot of different opinions might be your saving.

BAK files are very important, explanation below:
Consider what AutoCAD does during a QSAVE (assuming "create BAK" is enabled)
1. It writes the contents of the editor to a temp file.
2. It renames the current drawing from .DWG to .BAK
3. It renames the temp file to the correct file name with a .DWG extension.

I don't see how you have had problems with BAK files since it's simply a copy of your last save. In fact, if you QSAVE twice in a row, then your BAK = the DWG.

OR

Third party software DWG Viewer Tool

But demo version for free:- http://www.dwg.viewertool.com/

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Was wondering how to change the settings on filter. Its a Hayward Pro Series High Rate Sand Filter and the instruction manual says it have about 5 different ones....i.e. waste, recirculate, but we were only aware of the backwash function. There aren't any indicators on the valve to change or position if these options are available


If you know how to place the valve into the backwash and filter positions you need to use these. The others are important at times but they are not as important. In fact another type of backwash valve has only two positions. This valve is one of the most popular valves for this function so it must not be too bad. I hope this helps.

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