roidan

but here are some other things i did for extra insurance i went as far as installing this just for my fish tank alone.....

the end to plug into the UPS

ya..ultimately comes down to whether u want to spend that bit of money on insurance or not....and if insurance, how much premium u want to pay. anyway, i found a pic of something i bought previously that could plug into the UPS....from sim lim square also...then u just plug your equipment into this gadget... here it is.

and also...u got to take a step back and evaluate your own situation. say you are running a small nano reef and has spent quite conservatively, probably it makes less sense to buy a 1k UPS to protect sub-1k investment in this hobby so far. But then again one may think nothing of buying 1k UPS to protect 100 dollar investment because his efforts/time on the other hand are intangible and probably worth thousands more... If you are running a sizeable system and apparently all the time, effort and money comes to thousands or tens of thousands....what is a 1k investment to protect what you have invested in this hobby? like i said...bottomline comes back to how much you value and treasure and want to protect what you have put in. one would like higher coverage (UPS) for his system and thus have to pay higher premium. while another prefer lower coverage (AC/DC airpump or other ways) for his system and pay lower premium. For me, i am rather risk adverse when i assess my own situation in this hobby, so i rather pay higher premium

everyone's needs are different.... everyone wants his UPS to run different things..... if u feel that you only want your stream to run 2 hrs...u can go get a UPS that provides about half as much runtime as mine.... if u want your whole system to run 2hrs...probably u may need a UPS that provides more than twice the runtime as mine.... but in your question of running 2 streams....probably still drawing less than 50w depending on models.....probably still can last about 5hrs on my UPS... everyone's threshold of comfort is different....one may feel all he ever needs is 2 hrs of back up time.....for me 5 hrs seems pretty cool already... if somehow there is a trip and everyone sleeps like a log and ignores the superloud beeping of the UPS during power loss, the UPS still gives me the valuable 5hrs of so. But that won't happen lah...coz i sleep beside my tank just kidding anyway, you can always use AC/DC air pumps but i wouldn't like seeing bubbles and airstones around in my reef tank

yes..u can carry this 25kg around....to power your lamp or radio at the beach if u want.... but i rather leave my UPS clean at home

if tank crash sue the management...lol they are supposed to install mega skimmers to remove decaying organics before they have a chance to crash the tanks......or at least some automated seawater change when the meters detect dangerous levels of organics in the water

yiling....let me throw in centralised chilling for the tanks as well....common pool of water maintained at 27deg....those opting for even colder water can still use their chillers to push to 24-25 if they want. for those who are happy with 27deg....they can say bye bye chillers in their homes 35cents...no lah...this one....although he has since retired of old age and the *alfred* with me now is my reef trained indo-maid...

i got it through a friend who was clearing some UPS at that time.... definitely much cheaper than the yahoo auctions.

this kinda cable quite common in sim lim square

mine is this... http://www.apc.com/resource/include/techsp...se_sku=SUA1500I someone is selling a similar one in yahoo auctions...but u can always get a cheaper, lower VA model but it will run out of juice faster. http://page.auctions.shopping.yahoo.com/sg...50?aucview=0x23 And remember to get the SMART series as it outputs pure sinewave for your equipment...certain pumps and definitely tunzes do not work well and may even fail prematurely if u use them with a modified/stepped sine wave UPS that are much cheaper. For other brands...just read thru the manual/specs sheet and make sure you are getting pure sine wave output from the UPS.... see the back of the UPS..i just went to sim lim square and buy a cable with the suitable head that could be plugged and then cut the cable and joined the cable with an extension cord. And then i just plug my stream into the extension cord to enjoy the benefits of the UPS.

http://www.apc.com/products/runtime_for_ex...m?upsfamily=165 under 230V, my UPS gives me 5hrs drawing 50W over 2 hrs drawing 100W over 1 hr drawing 200W my tunze stream draws much less than 50W, but i give myself a conservative time of 5hrs

I am using the APC Smart-UPS 1500 and I personally do not use it to power the return pump for fear of overflooding the sump when power fails neither do i have to gauge how much water will flow back via return pipe or over flow back to the sump tank in a power failure because this problem should have been tackled in the design stage for the sump to accomodate excess water capacity in times like this. I use the UPS to power my stream, which lasts over 5 hours easily on good condition batteries. yes, singapore does not have much island, town wide power outages....but all it takes is another one to wipe out one's tank if things take a nasty turn. Of coz there are many tanks that can survive outages without severe consequences...but i wouldn't take the chance given how much time, effort and money i have put into it.(yeah..SP will pay their due fines and so on.....but who is going to pay for your loss....sue SP like a couple in the papers is bringing QianHu to court? ) another thing is localised power trip of your home, it can be due to anything from a faulty iron or other household equipment and if there is someone at home, at least he/she can notice the loss of power to the whole home and alert you and take corrective actions themselves or at least get your attention to come home. if no one is at home, at least your UPS buys you the precious hours before you come home. Every second counts in a power outage as oxygen saturation levels drop fast. like what weileong has experienced here.....his previous resun md40 powering his chiller failed and tripped the house while he was sleeping and it was the beeping of his UPS (powering his stream) that woke him up to realise what has happened. Imagine sleeping soundly through the night for 7-8 hours and wake up to a cloudy, foul smelling tank..... worse is that somehow only the tank's circuit is tripped and other household devices carries on as usual....and that may mean even when u have someone at home...they may not notice that your tank is slowly deteriorating... all in all, it is a matter of how much *insurance* you wish to pay for your tank. For all that i have put in and considering how much is at stake, i consider my UPS a small premium to pay for ease of mind.

challenge and conquer our weaknesses and all of us will be better reefers ok lah..return the thread to weileong and his newcoming tank

aiyo...dun be so short-sighted lah iori_del , there is absolutely no point in challenging others....so what if one wins the whole world but lost oneself in the process.... end up forgetting why oneself came into the hobby in the first place...is he in it to get the high of challenging others and win? in my opinion....the only person, if u die die want to challenge, is yourself. Because, as with everyone, you are your worst enemy and overcoming your own weaknesses in this hobby should be your goal instead

dan..u brought up a point that i have dreams about... that one day some developer comes up with a group of townhouses near the sea that can pipe seawater if we choose to use it or for emergency water change....have backup diesel generators if Singapore Power fails to deliver....and so on.... a truly reefer-oriented development. call it appropriately, The Reef? all the furnishings and decorations in the lobby and facade are all the marine stuff.....instead of the usual swimming pool.....why not a seawater one with clownfishes and others swimming beside you or even build a gargantuan or series of skimmers for skimming all the tanks piped together.....monthly maintenance fees to the management includes addition of calcium and other additives for the common pool of water....

thanks dan... alot of us here deserve a pat on each other's backs..... you definitely should do up a bigger tank....let your skills and experience do wonders on a bigger and more astonishing sps system

thank you wonderwoman so many new tanks popping up, can't wait for yours when you are back

i think his question refers more of running both together with a shorter time issit cheaper than run a chiller for a longer time... whereas my case is that i am always running 1 chiller...the other is never in operation until a higher set point is reached due to the main chiller malfunction in one way or another

Really varies from chiller to chiller.....how efficient each chiller is....varies from brand to brand....even within the same brand...it varies from model to model apparently.... there is always a chance that running 2 chillers at the same time, although using shorter overall time to cool the tank down to your desired temperature, total wattage used during this shorter time may be so high that it costs more than to let the single chiller run for a longer time.... thus the best thing to do is to hook them both up...and time the cooling time for the 2 chillers and then compare the cooling time using just 1 chiller. In that way, when u compute overall electrical consumption when using 2 chillers and 1 chiller, u know exactly how much the difference is.... batman aint' the authority when it comes to cold issues.....best person would be Dr Freeze

with height and pipe loss should be less than that lah...you can always consider since my 10m3 is sitting warm and dry in the storeroom......u can fix it up when the tank is here to see if u want to take over but anyway, will be looking forward to your new tank....hehe

I pass you the 10m3 for your backup chiller loop lah..... can split that also for other misc equipment...hehe on or not?

hehe...as you know...the comic batman went through a few robins as some robins retired...some got terminated by villians and so on..... not sure when is the next intake but at this very moment, i am about to pick up the current robin and go lfsing liao........ have a good weekend desmond signing off, Bruce Wayne (i wish! )

wah...nothing to win or not lah... every reefer is a winner in his own right er.....heard from gouldian issit? recently u go pasir ris lfs with him hor....you are desmond right? hehe

thanks bro... you are one of the many powerhouses in here that deserves