Based upon your CYA levels, you need to replace a huge amount of water to get your CYA levels down. ... over the winter that allowed sunlight in and as a result there was a lot of green algae growth in that corner of the pool. So… if you can’t drain the spa as often as you should here are several ways to clean a hot tub without draining it completely, or ways to reduce draining… Steps to acid wash inground pool without draining water? Hydrostatic relief valve leaking can allow water to flow out of the pool and saturate the surrounding ground. Typically, backyard swimming pools are equipped with 1 or more underwater lights. 5 comments . Occasionally, there will be something that pokes the side or the bottom of the pool and puts a hole in it. However, after years of constant pressure from the water, deterioration due to chlorine and degradation from sunlight exposure, the walls can weaken. Replacing your in-ground swimming pool light does not require draining the water from the pool or hiring a professional. A typical pool light bulb should last for more than 1,000 hours, while its protective casing lasts for years. How do you get the water out of a pool sand filter without ... sand to return to the pool with the filtered water. Just like any light, the bulb can burn out and will need to be replaced. Like when refill water is limited or unavailable, or when your city or county has water restrictions in place, prohibiting the draining of swimming pools, and hot tubs. ... Any tips for cleaning brown algae stains from gunite pool without draining water? The color change is subtle for my particular type of color blindness and I was getting some of the unusual color changes too. The interval between flushing depends on the hardness of your water. The hydrostatic valve is located at the deepest part of the pool or close to the main drain. However, corrosive water chemistry in your pool can make the fixture and the screws that hold the pool light together weaker which may call for replacement. This can create the problem the valve was designed to protect against and is one reason why you should replace the valve every five years. When it comes to changing your pool light bulb, you have different choices. I would suggest dropping down to the 12 inche all over level, and at that point, either refill, or once it is that low, put your hose with water filling the pool in teh very deepest part of one side of the pool, and drain the pool from the other end. Most water heaters benefit from a flushing once a year. You do not need to drain the pool to change bulbs later, but if you a re going to change the lights, at least consider emptying the pool to just below the light units. Patch the hole with a waterproof epoxy without draining the pool. How to Change a Pool Light. One way to extend the life of your Rheem water heater and keep it running efficiently is to periodically drain and flush the tank. Subject to the light unit at the right height in the wall, so it can be serviced from the pool deck. Getting my wife to look at the color change, and adding two drops of the third reagent before the second has given me two consistent tests less than 300 now. Started no drain acid wash at 1am on 2/24/12. Over time sediment builds up inside the tank, which can cause performance issues. If pool is plaster a light acid wash will usually correct.