2) The Connection Timeout is how long a connection from a browser to the server should take till it times out. So, when the browser requests a page/image/resource, it is how long IIS should wait until it terminates the connection. The Connection Timeout is set in seconds.
Wash out the inside of the fountain with a non-abrasive cloth or sponge and the detergent; or a calcium lime remover if hard water deposits have built up on the fountain interior. Clean the interior thoroughly and rinse with a hose or faucet completely to remove any soap residue.
Turn the fountain off. If there are stones in your fountain, take them out and clean them as well. Once you have access to your pump and water, remove the pump from the fountain. This will need to be cleaned as well (see below for cleaning pumps).