After some research decided to get a replacement valve. Delivery was very quick, arrived next day after ordering. Had this stackable washer/dryer for many years. If I was going to have to move it and open it up I wanted a valve handy so I would only have to move this thing once even though I suspected the real problem was just dirt. Discovered these hoses do not have screens in them. While I did not have the simpler washer only, viewing the video gave me a clue for access. Removed a couple access panels between the washer and dryer (thereby finally discovering an electrical diagram and operation chart). Saw the heavy clips at the rear as I had seen in the video. Popped those loose, did some careful tugging and wiggling and discovered the differences of removal from the single unit in the video. For the stackable, only the top of the washer enclosure comes off. The sides remain. Basically a straight pull which also unplugs the lid switch line. That connector is at the rear of the top cover. There are 2 plastic guides/vibration dampeners/cushions near the rear. There are 2 plastic "clips" at the front that do similar jobs besides retaining the enclosure top. After disconnecting the water supply and unplugging the unit, I moved it out so I could get at the rear. Removing the top allowed access to the valve at the back from above. Then removed and replaced the old valve with the new one. Two screws from the rear where the supply hose connections are. Video was helpful with details of this step. Both valve assemblies have screens in the inlets. The old one was full of sand and dirt. Might have worked fine after cleaning out but I put in the new valve anyway. Reconnected water lines, put stackable back in approximate position. Slid top cover in place, lightly prying lower edge of dryer to give more space to get cover positioned under rear plastic cushion guides. Front edge goes in gap of plastic clips. Plugged in, tested. Good water flow in all fill/rinse steps now. Finished reassembly and releveled unit. Will be getting screens to put in water lines. Worst parts of the job were moving the unit and cleaning up the spilled water from a supply valve that would not shut off entirely.