After the winter I set up the pool soft pool 549x132cm again but this time the blue and grey in and outlets keep leaking there is no normal way I can stop this maybe you have an advice? regards henri

check the warranty period for the pool liner
if in warranty period ask for a replacement
. if not there are special plastic glues available from a pool shop that will do the job or take the liner to a upholstery or plastic awning manufacturer and have it welded again

TRY TO OBSERVE IF YOUR BED NO LEAK

no you cant keep an above ground pool full water unless you live in a warm climate area that dont feeze

Check the valves that control the water in the pool equipment area. There are usually valves to divert water between the skimmer, service port and outlet jets. Also, the multi-port valve on the filter has several settings on it to control normal filtering, backwash, bypass, winterize etc. If all the valves are correctly set, you should look in the skimmer and pull the strainer basket out. Clean it if necessary and look at the bottom of the skimmer bucket to ensure that the drain cover is open.

I don't recommend Teflon tape as it places outward pressure on the pump and can cause the pump body to crack. and if that happens the pump body will need to be replaced. I use black RTV silicone. smooshing it into the threads of both fittings and hand tightening the fitting.. then the glue the pipe as normal
REMEMBER to prime the pump after any pump repair !!
Teflon tape works well on metal pump like well and irrigation, they are a high pressure pump and are generally cast iron tanks.
Jay the pool pump motor repair guy longwood Florida 32750

Do you have an electrical switch that turns this heater on/off?
Can the heater be unplugged?
Is the heater on a separate circuit breaker that can be shut off for the season?

You need to get liquid chlorine and add about 2 liters and let your pool filter run for a couple of days and in the mean time clean your filter twice daily. If the pool at this stage is still a little green add more chlorine and broom the bottom to stir it up. After this as once your pool is back to almost normal, clean the the filter again and add clarifya. To keep your pool in good condion over summer buy 2 pool floaters, put 2 chlorine tablets in one and blue block pool sparkle in the other and each week add 1 liter of chlorine. Hope this helps you as i have the same pool and i do this and don't have any problems. You can also add salt to your pool if you like but dissolve it in water before you add it to the pool.

I don't know how well those hold up during the winter months... it all depends on where you live...

Put in a gallon of shock and a 60% algaecide, let it circulate 8-12 hours and then drain it below the inlet and outlet. Put an air pillow in the middle and then a cover on top of that, secure the cover with a cable. Empty and clean the filter system and hoses then bring it indoors. You MUST take off all the excess water and snow.

Could also be a pin hole in the small copper tube that runs from the top of the heater to the thermostat. This has happened to me a few times. Small hole, but lots of water comes out. Get some 3/8" copper tubing and 2 compression fittings. It is easy to replace this tube. The only pain is that you have to take off the top of the heater to reach the end of the tube.