Im in the middle of a algae growth and been in the trenches for 2 weeks. i had a high cya drained half the pool and now the pool is cloudy with a little of green algae still lingering levels are all where they need to be. my main question is the local pool store employee has told me any brush or equipment i use needs to be cleaned afterwards, is this true? they advised 4 parts water 1 part muriatic acid?