How to open the T5720?

So you have a "TA" filter. Which size?
It does not matter really, otherwise I would have been able to know how much sand you you have to remove and how much to put back in.
Anyway, To change sand you have to remove the MultiPort Dial valve on top.
Then, you can either unplumb the filter and roll it over on its side and using a garden hose, start washing the sand out or use a shop vac, with keeping it upright.
Whatever you do NOT damage the laterals on the bottom of the filter. When refilling with sand you want to make sure all the laterals are undamaged and in the down position. Always fill the filter half full of water, at least over the laterals by a few inches, to keep the sand from damaging the laterals while re-filling the filter with sand. Make sure you use pool filter sand and not play sand! And... cover the stand pipe!!! Use duct tape or some kind of covering (spout cut off a water bottle then covering the pipe). Otherwise you will get sand into the standpipe and into the laterals, then you have another problem.

time to buy a new tripod, the repair will cost more than its worth.

• For our top mount filter, you must first disconnect the pipes leading into the valve and open the drain plug on the filter. Next, remove the clamp holding the multiport valve to the tank body. Once the valve has been removed, you will be able to see the sand bed. The best way to remove the sand is to either use a portable wet/dry vacuum or just scoop it out with a small can. Once the old sand has been removed, hose out the inside of the tank to clean the filter out. Once this water is drained, replace the drain cap and fill the tank 2/3 full of water. This is to protect the lateral assembly while the new sand is added. Add the sand slowly till the laterals are fully covered, then just pour in the remaining sand. DO NOT get sand in the vertical pipe sticking up from the bottom of the filter tank. The standpipe may be covered with a paper cup to prevent sand going into the pipe.
• For a side mount tank, rotate the multi-port valve to the closed position and open the filter's drain plug. Remove the tank closure dome and expose the top diffuser. The top diffuser lifts off and the old sand can be removed. The best way to remove the sand is to either use a portable wet/dry vacuum or just scoop it out with a small can. Once the old sand has been removed, hose out the inside of the tank to clean the filter out. Once this water is drained, replace the drain cap and fill the tank 2/3 full of water. This is to protect the lateral assembly while the new sand is added. Add the sand slowly till the laterals are fully covered, then just pour in the remaining sand. DO NOT get sand in the internal piping.

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Hello, 1 You need to unscrew the drain plug and screen (if it is still there!) at the base of the filter. 2 You can reclaim most of the sand by letting the filter drain through a sieve (lots of work) or use new sand. 3 Uncouple union joints or couplers that attach to filter head. 4 Remove filter head. 5 You can try pulling some sand out of the top. However, do not damage the filter fingers in the sand. 6 Use a hose to blast the sand out the bottom drain. 7 Inspect all fingers, replace if necessary. 8 After all is cleaned out, place finger mount inside filter. Cover top of mount with a cup or similar to keep the new sand out of the finger assembly. 9 Replace drain plug and screen. 10 Fill filter halfway with water. 11 Slowly pour sand in and spread evenly. 12 Remove mount cover. 13 Reinstall head, unions and couplings. 14 Prime pump and test for leaks.
Good Luck

The electric solenoid that opens the dispenser has failed. It is possible to replace it but you will probably have to disassemble the door to do it. An alternative might be to use a detergent tablet only in the open cup. It will partially dissolve during the pre-wash and what remains to dissolve in the main wash may be enough to get the dishes clean. Try this if the cost of replacing the solenoid is too high.

DON`T OPEN THE COVERS - YOUR SELF!!...You have to use ESD!!! Your cameras optical-unit needs operation. It`s not "self-made"-project!

sand in the mechanism? Or other kind of wearout... If the lens cover does not open completely due to some mechanical problem, the camera will not work (there are switches to detect cover full open and full closed). Probably needs some repair, cleaning or replacing the cover gears