Inground pool with sand filter. When I'm getting ready to vacuum and primed hose with water and insert hose into skimmer it pops off after a few seconds. What could be the problem? Plugged somewhere.

I'm not familiar with that particular brand, but if you want to get sand out of your pool you should first make sure you're ready to vacuum (with the plate firmly in the skimmer box and connected to your hose and then to your pole with the vacuum head), then turn the multi-port valve (MPV) to 'waste'. If your equipment is below the water line then water may start to come out your waste line - not a drama. Next, just turn the pump on and you will be vacuuming sand straight through the pump and out to wherever your waste line goes.

Be careful to ensure that you don't let the waterline in the pool get below the level of the skimmer box, because if you start to suck air you increase the likelihood of damaging your pump. A good idea is to top up the pool as much as you can with a hose before you start vacuuming, and then top it up again as necessary as your going along.

If you do need to top up the pool, be sure to get your water tested as soon as you can afterward, then top it up with whatever chemicals you may need.

front of pump goes to skimmers and main drain if inground pool skimmer if above ground top goes to inlet of filter then outlet of filter goes to pool returns

if this is a inground try only the main drain if it works something is in the skimmer line

PRIME PUMP, OPEN AIR VALVE ON FILTER. OR TAKE THE LID OFF YOUR FILTER AND SEE IF IT STARTS TO PUMP... YOU DO HAVE IT PLUMBED RIGHT? THE PIPE COMING OUT OF THE PUMP GOES TO THE FILTER !! I'M YOUR LOCAL POOL PUMP REPAIR GUY IN LONGWOOD FLORIDA. WHERE THE POOL IS ALWAYS OPEN

Oh then you DO need help. To vacuum you don't need to change the valve setting on the filter, but if there is a valve on the intake selecting main drain/skimmer you can select skimmer only, but I usually only do this after I have the hose primed. . You attach the hose to the skimmer inlet. Usually there will be a round plate attched to the hose that fits into the skimmer ( you may have to remove the basket) If you don't have that round plate on the hose, then you can insert the hose driectly into the bottom of the skimmer. Before you attach the hose, connect it to the skimmer head on the pole. Submerge the head and hose. Allow to settle to bottom. Put all the hose into the pool. Take the other end and hold over the discharge back into the pool to fill the hose with water (prime) until air bubbles stop coming from vacuum head. Then hold your hand over the hose (to keep from loosing prime) and quickly attach to skimmer. You may hear some air, and the pump may stop pumping fully mommentairly untill it is pumping full water again. Now you can select the valve to divert all the flow from the skimmer

if your pool is clean its not sand when we vac customers pools we put vac in pool and put vac hose over pool take a wet vac put on end of hose outside pool keep it on only long enough to get water flowing save your filter and water if you want to vac through skimmer make sure you are in filter mode good luck

de filters clog very fast i suggest put vac in pool put hose over pool attach a wet vac to get water out of hose remove wet vac and vac saves de and water

IF IT DOES NOT FILL CONSTANT FROM POOL IF IT IS AN INGROUND YOU WILL HAVE TO HELP IT BY PUTING A GARDEN HOSE WATER ON IN SKIMMER PUT A RAG AROUND HOSE FILL CUP TURN OFF RETURNS OPEN BLEEDER VALVE ON FILTER LET WATER FILL START PUMP AND OPEN RETURN VALVE SLOWLY YOU MAY HAVE TO DO THIS SEVERAL TIMES MAKE SURE AFTER YOU GET WATER FROM BLEEDER YOU CLOSE MAKE SURE ALL CONNECTIONS ARE TIGHT INCLUDING CLEAR CAP ON PUMP THESE ARE AIR BLOCKS IF ABOVE GROUND CHECK ALL HOSES AND CAP