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#1
12/04/2007, 10:08 PM
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reefer getting stressed out
hello everyone....heres my situation...i was running a mrc dual chamber calc reactor for appx 1 year....i had always dosed by drip method with gallon containers appx 2 1/2 gallons per day of lime water to maintain a decent ph low of 7.85 to 8.20 during high. before thanksgiving weekend i got a pm kalk reactor and combined it with litermeter III to dose 2 1/2 gallons per day(evaporation per day).this way with a 13 gal resorvoir of ro/di water i can go days without topping off sump. well just over the last few days i noticed ph kept getting lower each day. i started adding limewater sludge to bring it up and every night it would get lower. i do have a refugium with cheato and was running 56 watt pc over it 24/7. yesterday i switched light on refugium to 100 watt thinking this will boost ph at night. also stopped calcium reactor because when i would get effluent to be just right it would bring down ph in tank withing hours.
this morning i found ph @ 7.66 so i again dosed some sludge and when i got home ph is @ 7.56!!!!! any suggestions would be appreciated. tank parameters at this moment ph 7.59 pimpiont monitor alk 10.56 dkh lamotte temp 77 phos undect with api kit nitrates 5 or less with api calcium 480 api running euroreef skimmer as well |
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#3
12/04/2007, 10:41 PM
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the probe i'm using is appx 6 months old ...i have an old probe that i recalibrated and it read 7.56 then i switched the ph monitor with an extra one i have and got similar crappy results. so i don't know if all both probes are bad or both monitor or a combination of both. i did however notice when calibrating the probes ...as i took from one pouch and shook off excess calib fluid , the probes would still read what they were last at. i thought once out of the pouch the ph probe would change its reading ( like going up or down in readings).
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#5
12/05/2007, 01:50 AM
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Sorta off topic but do most of you guys work on trying to get your evaporation down to a minimum during the winter? 2.5 gallons of evaporation causes about 6 kW/h of power needed to reheat the tank to keep it at the same temperature. Thats about $2.16 a DAY in electricity costs (assuming .36 cents a kw/h which is what most my power is in) Thats $65 a month in electricity costs just offsetting evaporation, little alone the power needed to keep it warm from other heat loss sources. What are your guys thoughts.
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#6
12/05/2007, 02:14 AM
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that's a great question. I bet there are a lot of really good answers to that as well. Would you be willing to repost in a new thread? I'd like to see what others have to say.
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#8
12/06/2007, 12:23 AM
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marko9
thanks for your input...i went and purchased another probe (started thinking that the one i have is actually about a year old and not 6 months) and after recalibrating ph was @ 7.91 as of 6:30 pm and rising. kinetic i used another ph test kit last night as you suggested and it showed ph to be nornal so it got me thinking about probe needing to be replaced again thanks to both of you for being helpful. sergio |
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#9
12/06/2007, 01:26 AM
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Quote:
well as long as the kits are reading ok now, maybe you're in the clear. I'm always a bit afraid when probes and tests start giving really odd readings. Goodluck with that!! keep us updated. |
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