To glue or not to glue?

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Unattended Fish

Feeder Fish
MFK Member
Jan 22, 2010
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Alright here's the thing I'm setting up my 210 with a hydrive pump rated at 1800 GPH that has one ocean clear and one nuclear canister filters in tandem. I am hard plumbing the system but, from different reputable sources one source says that I don't have glue the system since it will be a low pressure system. But yet other sources laughed at the fact that I'm listening to that option. For me I think it is really risky if I don't glue it but, this source that told me I don't need to glue has some 30+ years of experience under their belts and large successful operation(s). I'm also stumped if I should place the pumps before or after the filters... Any opinions or help would be greatly appreciated!
 
Just one simple question...why wouldn't you want to glue the pipes? Wouldn't you feel much safer knowing that the pipes aren't going to spring a slow leak or a big one for that matter if something was to happen? Not worth the risk to the fish or your home IMO. My vote is for glue with the couple extra minutes it will take setting up your filtration.
 
Yeah while I think about Im prolly going to glue it due to the fact that someone might accidentally bump a pipe or yeah leak on me while I'm at work would be disaterous! But I'm still wondering if anyone has done it before? Also like stated above about the position of the pump. As of right now I got the pump after the two canisters. Bad idea? I'm just worried that debris or sand will go into the pump to cause it to fail if I were to put the pump first.
 
I glue all PVC, but use threaded attachments wherever possible, and unions where ever I can in order to be able to clean out pipes easily (especially before bends) and detach plumbing from filters or pumps for ease in maintenance.
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Note the PVC threaded union screwed directly onto the pump, well worth the price.
 
Put the pump before the cannisters and glue every connection that isn't threaded or clamped.
 
Just wondering is there a reason for the pump to be before the filters? I was just thinking to protect the pump as much as possible, as the filters would get everything before it hit the pump.
 
It is good to catch debris before it hits the impeller, can save the impeller from pitting damage.
You also don't want to starve the pump as it can cause cavitation. If you filter the water first, just always be aware of any choked flow and clean the filter often to prevent it. But cleaning the filter often is good practice to maintain water quality anyway, if stuff is in the filter, its still in the aquarium, just out of sight..
 
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