I've decided to make some changes to my out door tank system and even though it's mere meters from a thriving reef I will no longer be creating a "Direct Flow Through" system only because laying the piping/plumbing from beach to reef is just too much work for what could be a lot of frustrations.
However...I still plan to utilize the mega pump for weekly water changes, I can place/move the pump freely as needed and the idea will be that once a week when its time for water changes we bring out the mega pump, attach 2 flexy hoses to it, my mate here will swim out to the reef (or float out in his little boat) lower the tubing down to the reef (via weighted end) then when he has done that I will place the other flexy hose in the tank and turn on the pump to place new NSW into the tank very effortless.
This way I don't have to worry about the weather affecting the local water because over the past 2 weeks here the waves have been so large that it has been ripping up the reef and dumping loadsss of dead coral on the beach which I have been collecting and dumping onto a big pile of dead coral that is well over 200kg by now...but to me I can just see any plumbing I put in being ripped up as well and shattered by the waves...
The closed/traditional system I have designed is similar to a FOWLR in that because their is NO coral and weekly or bi-weekly water changes I will have minimal electronic filtration.
The only electrics intended will be Powerheads, Sump Return Pump, Sump Refugium Lights that's it so it should all run for less then 200W which is quite manageable here, most of the filtration will come in the form of Live Rock, Macro Algae, DSB & Filtration Socks as well as Carbon likely (maybe a bag in the sock itself where it can get hit by the most water turn over possible), if not then I might purchase a reactor and T it off the Return Pump.
All up the system will be over 1000L and support 2-3 Large Stomatopods (might get a pair of Maculata being its so easy to here) but the majority of the Bio-Mass will come from the Live Food compartments in the sump Fish, Prawns, Crabs, etc.
Those compartments aren't JUST for those labelled live foods for example if I have no fish but catch a few squid etc. then they would go into any empty compartment for Live Food Storage.