sponge. 1. a porous, absorbent mass, as a pad of gauze or cotton surrounded by gauze. 2. the elastic fibrous skeleton of certain species of marine animals. absorbable gelatin sponge a sterile, absorbable, water-insoluble, gelatin-base material, used as a local hemostatic. (spÅ­nj).
The water heater is the first place to start when there is no hot water in the shower. A shower should be counted on to be good and hot when you need it to be. But keep in mind that the hot water coming from a shower is coming from your hot water heater tank.etermine if the problem is whole-house related or just affecting the shower. Turn on every hot water faucet and check the temperature of the hot water. If they all start out hot but cool quickly, a burner in the water heater may be the cause. If they never get hot, a faulty dip tube may be the problem.
1 Turning on the water: Having extra people will help when turning on the water so that you can spot leaks quickly. 2  Turn the water on slowly at the main water supply. 3  Let the water in a tub run if you can. 4  Turn the water on to each fixture and let it run for a few minutes.ote: If you have pressure balanced shower valves you will have to turn on the shut off valve above the water heater to get water out of the valve. 1  Flush the toilets: Toilets can leak from the seals between the tank and the bowl. 2  Test them by flushing each toilet several times.