Generally speaking there are two different types of lead acid battery, Starting and Deep Cycle. If a starting battery is routinely deep cycled (discharged below 20%-50% of max capacity) it will generally fail after 30-150 cycles. The same starting battery will last for thousands of cycles if it is just used normally (2% - 5% discharge).
These phosphates precipitate the solids to the bottom of the boiler drum. At the bottom of the boiler drum there is a bottom blow to remove these solids. These chemicals also include anti-scaling agents, oxygen scavengers, and anti-foaming agents.
As the products of reaction are harmless-nitrogen as and water, hydrazine treatment does not increase the dissolved solids content of the boiler water. The excess hydrazine in the boiler breaks down to give ammonia which provides suitable alkaline conditions in the steam condensate system.n order to counteract the effects of contamination, boiler feed water is treated chemically, to control (1) scale formation in the water sides of boilers, (2) corrosion, and (3) foaming and priming, and it is treated mechanically and by heating to reduce the dissolved oxygen present in the water.