It sounds like you may have phosphates in the water, do you have lots of leaves or the aftermath of seeds from the trees blowing in your area, I had poplar tree seed casings white fluffy things and it gave me this problem. Solution is a product called phosfree. I always change my filter's sand once per season, unless there is a high concentration of leaves and other debris being vacuumed up daily. Then I will change it out mid-season as well. After changing the sand, I always backwash the filter for at least 5 minutes. That way the pulverized dust and other small particles in the sand get whisked away, instead of going into the pool. The sand under normal use should last 5 to 10 years if it's backwashed well enough. The foam could be caused by the algaecide used. The usual reason for replacing the sand is when sand is returning to the pools or it is no longer effective. You should check with your local pool chemical supplier. Most pool sales and service companies supply free water testing when you are a customer.
This filter is a permanent filter and should only be replaced when replacing the fuel pump.
Per most manufacturers' instructions, you should replace your refrigerator's water filter at least once every six months. If your water tastes "off," you should consider replacing the filter even if it hasn't been six months.
It should be inspected once a year because critters are known to nest in there. Replacing the filter every 35K is a good practice but it really depends on how dusty the driving conditions are.
You can tune up your Nissan by replacing the spark plugs and spark plug wires. You should also replace the air filter and the oil.
Should be done within 3 hours if all goes well. Recommend also replacing fuel filter.
If the resistor is alright why replace it.
In any automatic transmission the fluid should be changed at the interval specified by the manufacturer. You should have the transmission oil filter replaced also at this time. Many shops will just suck out the old fluid and replace it with new without replacing the oil filter.
You should replace your fuel filter every 12,000 to 15,000 miles, and because they are cheap enough, when in doubt, just replace it. Be careful when you do, Make sure to relieve the fuel pressure first and try not to damage the fuel lines. It kinda goes without saying, but no smoking while you are replacing a fuel filter.
It is highly recommended.
Replacing the fuel pump is not a schedule maintenance item. You replace the fuel pump when it fails. However, you do need to replace the fuel filter at a regular interval. I recommend you replace the fuel filter every 50,000 miles if it is replaceable. A partially clogged fuel filter will cause the fuel pump to work very hard to pump fuel to the engine. This will cause the fuel pump to fail prematurely. So replace your fuel filter every 50,000 miles and you may never have to replace the fuel pump.
It depends on how many miles you drive, and how long you want your car to last.In General you should replace the engine oil and filter, the transmission oil and transmission filter and drain and replace the radiator coolant.You should also replace your air filter,and if your car has an external fuel filter, replace it.If you drive a lot of miles, your engine oil may need to be change sooner.
How to replace a water filter on the fridge depends on what model it is. The filter and fridge manual should have directions listed. Usually the front of the bottom of the fridge has to be removed to replace it.