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.
Troubleshooting Hot Water Low Pressure. 1  1. Inspect the water heater if your low water pressure only affects your hot water. In this case the water heater shut off valve is the most common source of this problem. 2  2. Test your water faucets again to see if the problem is resolved.