Impeller pump and housing

What will a bad or worn impell

What will a bad or worn impeller look like? Is it easy to tell by looking at it. How about the housing? Can you tell by visual inspection? Thank you

"The housing should be intact

"The housing should be intact with no cracks or warping, and should have nice shiny smooth inner surfaces.
The impeller should have no broken off blades, and when removed a rule of thumb is that if the blades nearly straighten out after an hour or so, it is not bad. If not it has taken a "set" and needs to be replaced. If it is older than 2 or 3 years it should be replaced anyway, as it is not expensive.
Most feel that if the drive leg is off or apart for any reason, change the pump impeller as a matter of course while you are at it.
Rod"

if youre going through the has

if youre going through the hassle of removing the lower unit to inspect the water pump....you may as well replace the impeller and housing for $30

Rod summed it up and I fully a

Rod summed it up and I fully agree with S G.
Do it right once and enjoy or do it a couple times and lose boating time.