Solar covers for above-ground pools

A canvasbubblesplaced on the water which:

• Limits evaporation(often 70–95%), therefore less heat loss.
  
• Retains heat at nightthanks to theinsulation created by the air bubbles.
  
• Reduces product consumption(less evaporation and UV on the water).
  

• 9mil lightweight, economicalheats up quicklybut shorter lifespan.
• 11 mil better balanceheat/lifespan/handling.

The thickness plays a role instrength and insulation; THEsolar gaindepends mainly on the amount of sunshine and thecolor/transparency.

• Takeslightly larger,let it relaxthe canvas in the sun for 1–2 hours, thencuttingat theminus 1–2 cmfrom the wall to avoid snagging.
• Avoid cutting too short; some canvasesshrinkA little bit with the heat.

Yes.Bubbles DOWN(in contact with water): they create theinsulating layerand prevent the tarpaulin from slipping. Smooth side up.

• At night: put up the canvas.It greatly limits losses through evaporation and retains accumulated heat.
  
• During the day: remove the canvas.The water receives direct sunlight and heats up faster.
  
• Swimming & treatments:remove for swimming and during ashock; to wait for12–24 hdepending on the product, thenrinsethe canvas before putting it back.
  
• Useful exception:in weathervery windy/cool, we canleave the canvas in placeeven during the day to reduce losses rather than blocking solar input.

Common causes:

• Aggressive chemistry(low pH, high chlorine, shock to the existing canvas).
  
• Overheating in the sun
  
• Wet/folded storagefor a long time (stagnant chlorinated water).
  
  Corrections:
  
• Remove the canvas for everythingshock treatment,rinseafter swimming/products,coverthe (UV-resistant) roller shutter, anddrybefore prolonged storage.

• Evaporationreduced70 to 95%→ thousands of litres saved per season depending on the surface area.
• Heat: nighttime losses greatly reduced → more stable water, shorter heating start-ups.
• Products:-30 to -60%consumption (less UV and evaporation), more waterstableand easy maintenance.