Another theory is that these darker finishes can save you money in pool maintenance – as the darker color absorbs heat from the sun, keeping your water warmer year round. It doesn't, but for typical swimming pool depths and remembering that swimming pools are generally maintained to keep the water as clear as possible (so minimizing attenuation) a significant fraction of the incoming light makes it to the bottom of the pool. We spent under $100 and were able to heat 3 gallons of water nearly 7 degrees each minute. Does a black pool liner stay warmer? We show you how to make a $100 pool heater with parts you can buy at any big box store. The Lily Pad pool warmer doesn’t need to be removed to swim, sweep, or vacuum, and it meets new requirements in water conservation areas to keep at least half of a pool’s surface covered. I did this once and had great results. An alternative would be to build these "lily-pad-pool-warmers". I was wondering if the darker blue liner I get, the faster it will heat the pool. light colored pools vs dark colored pools Fiberglass pools are available in a wide variety of colors these days. Owning a pool can be quite expensive, between all the chemicals, equipment, upkeep, and heating. If you placed some black plastic sheets floating on top of the water it would heat more efficiently and faster. Pool heaters help moderate the water temperature in your pool, but a heater can also lead to stains. No. The size of it really doesn't matter as long as you cover most of the pool. You make a bunch of them and then float them on the pool. Heating and maintaining a swimming pool can be very costly. It is a myth that black bottom pools are warmer. As pool liner experts, we get this type of question all of the time. They are basically hoola hoops with black plastic sheeting stretched across them. Before you consider the unthinkable, attach a hose to that water heater and have your friends over for an early season pool party. Which swimming pool heater is the best. Heating your pool with sunlight appears at first to be simple and attractive. Does a darker pool liner keep my pool warmer? Another theory is that these darker finishes can save you money in pool maintenance – as the darker color absorbs heat from the sun, keeping your water warmer year round.