Thank you. Bought MA and liquid chlorine today. Do you have a certain way of putting them in your pool? Also, birds have found the pool and now poop in new decking and coping ArgGh. Any suggestions on how to clean it up?I am a worry wort so don't like the in skimmer way as I always worry the sock with block the flow of water. I like tube socks better as there is less of a chance for any "pebbles" to fall out. To hang it in front of a return you can tie it to the end of a broom handle and put some thing heavy on the broom end to keep it from falling.