What are the pros,cons of the super strength pourous and non-pourous pool covers?

The advertised covers that allegedly will support an elephant are the type covers I'm interested in buying. I want to know which one is the strongest and most maintenance free. I want to know if there are algae problems upon pool opening. What about rainwater on the solid cover? Just any information deemed useful in making a decision.

The in ground pool cover you describe is generically known as a "safety cover". All the manufacturers I've dealt with seem to be about equal in quality but the Cantar product seems to be universally available and their measurement sheet is the easiest to fill out for the manufacture of the cover to fit your particular pool if you plan on measuring and installing yourself. It takes about an hour and a half on average, for most pools for an experienced installer (crew of two).
Algae issues. There can be. As a rule of thumb, most owners of this type of winter cover will open their pools earlier in the season when algae has yet to form and close later in the season. Doing this can avoid a potential algae issue but it's not garanteed. It all depends on the weather.
You'll also see some dirt in the pool upon opening. Unavoidable as some will get in at the edges of the cover.
These covers are actually a breeze to open and close, usually taking, on an average pool, only 10 minutes to do either. One person and a cordless drill with the proper bit to raise or lower the deck anchors and lever on or off the straps.
As to a traditional cover.( non porous)
Generally they take much longer to open. The precipitation of the entire winter is on it as well as any debris that's blown in. That all has to be removed before the cover comes off. There are two types of this kind of cover. A water bag anchored one and a lock in one. A water bag cover can be used on either a concrete or vinyl pool. A lock in is generally only available on a vinyl pool with the proper coping track.They can be made of actual vinyl ( usually only in a lock in) or a poly tarp material which is more common and in my opinion better for longevity if taken care of. Lighter too.
Algae issues with a non porous cover usually only occur if your water chemistry was out of balance at closing or the cover hasn't been secured properly and debris has gone under the cover or the top cover water has managed to mix with the pool water because of a hole that has formed in the cover.
Price wise, the safety cover is MUCH more expensive, but properly looked after will outlive a poly tarp or vinyl non porous cover. They also do work as advertised. I used to take the short cut across a pool after closing it rather than walk around the deck and it always amazed the customer a bit.:)
That just goes to show that pets or kids will have no issue like they might with a normal cover which could entrap them.
When all is said and done, it's going to boil down to your budget and how safe you need to feel. Source(s): former pool tech

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