SLAMing question

It occurred to me that I never checked behind the return nozzle and what do you know... I found a thin layer of green algae hiding. I cleaned it and put it back on. That being said what do you think the chances are that more could be hiding in the return line? Especially since I found some in the suction line from the slimmer to the pool liner.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.