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Set up properly and placed before the pressure tank, an AN upflow Calcite filter will not flow backwards regardless if whether the pump is running, or the house is being served water via the pressure tank. There would be no backwashing valve here. If you well produces, say, 5-7 gpm, then the...

You can remove the filter before the AN filter if a backwashing valve is added. That may not solve the problem of getting the sandy particles to go away at first but should be corrected soon due to reversing the flow and letting the Calcite act as a filtermedia as well as an AN. An AN filter...

Is the system placed before or after the pressure tank? What is the diameter and height of the tank? What is your water pressure settings? What color is the 'sandy' particles?

For water spots, use an acidic solutio , like a vinegar/water mix, to remove spots caused by hardwater.

bsnider, there is not a 'tremendous negative difference' in these circumstances. Your softener will work just fine with lengthy pauses between regenerations. You might want to manually regenerate it once in while for peace of mind but there is no need to worry, this of course depends on your...

bsnider, we have seasonal pulls (to prevent from freezing) that go idle for months and months and have been working fine for years and years. You really needn't worry. Resins area actually much tougher than some are lead to believe, kind of like limescale.

You should not be too concerned if your water use over a 15-day period is minimal. Your resins won't get fouled. Now, if you had heavy use over the same time, then yes, I would recommend a more frequent regeneration. There are advantages to more frequent compared to infrequent regenerations, but...

Chlorine, being a powerful oxidizer, is most likely finding minerals in the water and causing precipitation. This is common in many solution tanks that operate likes yours.

Like this that 'frooze up' due to moisture. Culligan said it wasn't repairable at the cost of replacing it.

Here is Culligan's Super S system with pump. It sounds like your's is a homemade job. Saturating the carbon with large volumes of strong bleach often enough with shorten the life of the carbon fairly quickly.

I was told by a Culligan guy that this sulfur unit (Culligan Super S) draws a gallon a at time and has an pump attached. Gary23, is this what you have for a "chlorination system"?

As I undertood that you already had a chlorination system and one might think that the carbon is not handling water of an unknown biological quality. Rebedding a carbon tank is not difficult unless you prefer it be done by those who are familair with doing it. I would like to know more about...

Some threads unravel, some get tangled.

I hope he doesn't mind my quoting him in saying that softened water works as well as hydrochloric acid in dissolving limescale...only a bit more slowly. That's a classic one. http://www.chemistryinyourcupboard.org/harpic/3 Gary23, sorry this is yet another thread that has gotten way out...

Absolutely not. Cold water can be completely soft and the hot many, if not scores of grains hard, clearly indicating the softener is not consistent. Just today I visited a home where the cold water had 1 grain hardness (regnerated earlier that day) and the hot had 32 grains, because the softener...

Shower?! Correct, I misquoted and retract. My apologizes. Testing water after the softener should be adequate. Testing hot and cold can reveal much. But before and after the softener is not the same as testing treated hot water and treated cold water, which is not what you said.

Skip, does he mean to say that softened water will act as a descaling agent in plumbing? I have never heard a water treatment guy make that claim. I would like to understand the chemistry whereby softened water can make insoluble calcium bicarbonate soluble. I have seen many scale-laden faucets...

What method are you using to test hardnes (0-25ppm)? Are these test strips or liquid drops? According to a leading authority, soft water is 0-1 grain, 1-3.5 is considered slightly hard.

Salty water after a regeneration can be caused by a few different things, including low pressure during backwash, high salt dosage, improper settings of the valve, flow rate. Does the salty taste go away in a short while (few gallons of use)? I don't see how testing the water BEFORE and AFTER...

You could just flush the water heater, too, but as mentioned, it will take a day or so. Let us know. If it continues on again, off again periodically, then your softener is letting hard through and should be reset. With just 6-7 grains of water, I can't imagine that a small bit of scale build up...