711 Won't hold pressure while trying to vacuum and when I shut filter off it pushes water back through outlet

you may have to blead air from the water lines. air pokets will not let your pump regulaet. as your pump feeds water into the filter and all your house hold pluming it must reach a set presher. if ther is air trapt in the sistem it can not build enouph back presher to force the pumps PSI regulaeter switch to ingaidge. air is lighter then water ther for thes to difrent forces pushing against one another couses a flucksuaition and can not regulaet. blead all lines from the pump to all outlets"fosets,spikets and filltering sistem. let pump run while going to all outlets one at a time opening and closeing "cold side first" them to releave the air from the lines. donot forget eny outside fosets this should solve the problem. thank you for leting me help you today .

Start by turning off the hot and cold water faucets that are connected to your washing machine. This will stop water from running into your washer so you can disconnect your water inlets without flooding the house! To relieve any built-up water pressure, pull the knob out on your washer that starts the washing cycle for just a few seconds. Now it's time to unplug and disconnect your washing machine. First, unplug your washer from the electrical outlet. Next, use a pair of pliers to unscrew the hose fittings on the back of the washing machine. There will likely be some water left in the hoses, so you will want to have a hose or a bucket handy in order to catch and clean up any spillage. Now it's time to break out the water-resistant vacuum. Place the vacuum over each water inlet. As you turn on the vacuum, tap on the inlet a little with a plier in order to free any debris or sediment that may have lodged in it. Continue vacuuming until the inlet is clear, then repeat on the second water inlet. Now that you're done clearing out the filters, it's time to reconnect your washer. Using your pliers, reconnect the correct hose to its inlet and make sure to tighten them properly. Don't forget to double-check to see if there are any leaks. If you find any, re-tighten accordingly. After that, all you have to do is plug your washer back into the outlet and you're ready to go. You've successful cleaned out your washing machine filter!

Water still in the bottom of the drum. Empty, clean filter and check pump is turning. Once pressure switch is satisfied no water is left it'll allow the door to open, assuming the door interlock is still ok.

sounds like you broke a connection on one or both wires check for breaks in the cord

The filter housing will have either a shut off valve before and after the housing or a valve on top of the housing that turns (Black).
Shutoffs before and after.
1. Turn both valves off
2. Push the "red button" on top of filter housing and hold to relieve the pressure off housing.
3. Unscrew housing to the left (lefty loosey, Righty tighty) You should have a housing wrench.
4. Remove filter, clean housing, lubricate the o-ring with silicone lubricant.
5. Replace filter, Screw housing back on (Hand tighten only)
6. Open inlet valve (slightly) while holding down the "red button" to relieve air in housing.
7. Open inlet and outlet valves and you are back in business.

PS if the housing is very difficult to remove.
1. Shut off inlet valve
2. Open the nearest cold water faucet and let it run until no water
3. Shut off outlet and repeat procedure as above
Good Luck, RJ
5.

Here are instruction to remove the filter housing. This is from my tips posting. Culligan filter housings are just Pentek/Pentair water filter housings and these tips apply to virtually any filter housing.

Frequently whole house filters can be very difficult to remove. The canisters become almost impossible to loosen, even after pressing the pressure relief valve and using a housing wrench. The most common reasons for this are the housing was put back on with the housing wrench, debris in the housing threads and a bad pressure relief valve.

How to remove a stuck filter housing.
1. Turn off the incoming water.
2. By-Pass the Softener
3. Go to the nearest cold water faucet, open it and let the water run until pressure drops significantly.
4. Turn the water off at outlet of filter (If housing has shutoff on top off head, turn this off now).
5. Press and hold the pressure relief button to relieve pressure further.
6. Use filter wrench to unscrew housing (If it still won't loosen repeat steps 2-5).
7. After removing, clean housing thoroughly, make sure threads are clean on filter bowl and housing head. Lubricate threads of housing and head with plumbers faucet lube or silicone.
8. Clean and lubricate the O-Ring (replace the O-ring every couple years or if housing leaks after screwing back on). It helps to flip the O-Ring over a couple times per year.
9. Replace the cartridge filter and screw the housing back on.
10. Turn the incoming water on slowly while holding the pressure relief button down until all air is purged.
11. Open outlet and let water run to cold water faucet until all air is purged.
12. Put softener back in service.

IMPORTANT! Only tighten the filter housing by HAND!
NEVER use the housing wrench to tighten the housing.

I hope these tips help you with the angst of removing stubborn filter housings.

RJ

The best way to do this is to shut the incoming water supply off. Open the closest cold water faucet to relieve the water pressure. Shut off the outlet valve. You will need a BB wrench. Push the RED pressure relief button on top of filter as you turn clockwise on the wrench. Lubricate the o-ring with silicone lube, clean filter housing and re-install filter. Only tighten housing hand tight.
RJ

Lefty loosey, Righty tighty. If you can't budge it shut off the incoming water, go to the nearest cold water faucet and run until pressure is relieved. Shut off outlet valve, hold the pressure relief valve down while turning to the left with a BB filter wrench. Lubricate o-ring with silicone lube and only tighten by hand.
RJ

The best way to get it off is as follows.
1. Turn the incoming water off.
2. Open the closest cold water faucet and let it run until pressure is relieved.
3. Close the outlet of pre-filter housing.
4. Push the pressure relief button and hold it down until no more water comes out.
5. Use the filter housing wrench to unscrew housing.
6. If it is still hard to take off repeat steps 2-5.
7. Clean the housing and o-ring, lubricate the threads of housing and head with silicone lube or plumbers faucet lube. Lubricate the o-ring with same.
8. Replace filter
9. Only tighten the by hand NOT with wrench.
10. Turn water back on and hold pressure relief button to bleed off air.

The number one reason for filter housings being so hard to get off is people tightening the filter housing with a wrench when re-installing it.

RJ