Lee wrote:
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote
Quote:
|
I think check valves are a mechanical items just waiting to fail.
|
I'm glad someone pointed this out. I was going to say this, I'm glad all I have to do is "second the opinion."
It doesn't take much for the seal to fail on a check valve. Also some check valves are not flappers they are some kind of spring loaded type, and guess what, what is the spring made of? If we can't be sure then don't expose it to your saltwater. Last but not least they do also add a bit of head pressure but probably more so with the springloaded types over the flapper types.
Also ... I'm sorry to rain on the parade, but I gotta say, I'm not real thrilled about seeing holes drilled in the CENTER of the bottom plane. This is the weakest point of the bottom and it endures the most stresses as well. Is this glass or acrylic?