You can order from florida farm directly. I've done that before and its ok. Or you can make a trip to singapore, any one of us will be happy to bring you to those shops selling phyto culture stuffs.
I dun think anyone here can test all the skimmer. Who are the judges anyway. I think, just forget it and accept the industrial facts that this skimmer is good, that skimmer is lousy etc.
It's like I have a 600cc kancil and I mod the car till I have 300hp and can outrun any evo around. So which is better car?
I still think is what you pay for is what you get
All these contact relays, MCBs, timer relays, need to be enclosed in proper chasing to avoid salt sprays etc, because the terminals, contacts points are easily rusted.
I ordered my ozone equipment from here. Price reasonable and arrival time is less than a week.
premiumaquatics.com
Either Pinpoint or Milwaukee is good. Pinpoint slightly expensive
Some of the hot /stale air might get trap in the duct because the chiller fan is not strong enough to push out all the air in the ductwork and in turn, the chiller efficiency will be bad. Therefore you need another fan the end of the duct to pull the hot air out.
Quite interesting thing that PUB is doing. Everyday our government is asking to save water, and yet PUB throwing newwater into the drain. Producing newwater also uses some form of electrical energy. So throwing away the just-produced newwater also a waste of electricity.