Tank turnover calc

  • We are currently upgrading MFK. thanks! -neo
+1
 
Just turn it over as fast as you can
You can never have to much filtration

I wouldn't be happy unless I was turning the tank over less than 7 x per hour

We all do things our own way and filtering a tank to the max has always worked for me

Even on my old 350g I used to turn over 9800 lph


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It's not meant to be an exact science - just turnover what you can which is within reason - if you can only do 7x before it becomes impractical for you due to cost to purchase the pump, running cost or any other factor then that's still fine.

Personally i think your sump size is just a pain in the back side - sure total tank volume is great to have more of but its just had the adverse effect in your case (IMO) - my sump is only 5x2x2 an my tanks larger than yours - T1's is only 6x2x2 and both of ours perfectly do what we require and hold the media we require.
 
My sump is full to the max probably about 18 inch deep so no wet and dry it runs just like a giant canister filter
I even strip it down and clean it out once per year just like a canister filter

I had great results with loads of canister filters on my 350 gal to made my sump the same

Yes the main part of the sump is full of sludge mud but so would a canister filter

I stir the media every month and the whole tank turns green overnight but is clear by morning


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Take into account all water even if pipes if you really want to get technical but also don't forget head loss from the pump
 
Woah! Yes get the point and just what i was hoping really. Keep it simple, i am going to just worry about the volume of water in the main tank total 1800 ltr in a 9x4x2 tank so will get 2 Laguna 10600 ltr pumps, this should cover it i reckon.
 
Don't get technical - keep it simple

Great advice were did you hear that lol

Comen sense tells you you will lose power from head height and pump sizes

Just look at wattage to see how much each pump will cost to run

Make sure you can fit the pump in your sump

I use the pond pump types with the plastic cage around them that acts as a pre filter in a pond I strip all the plastic off and place the bare pump in the sump

Also don't just use 1 pump use 2 or more so if one stops you have something still running

Buy spare impellers for all the pumps just incase as you don't want to wait a week for a new one to be delivered
Impellers are the only thing that ever go in pond pumps and some are expensive but others are cheap
My 18,000 lph pump the impellers are £18 the 30,000 lph pump the impeller is £56 so find out part prices before buying all my pumps have impeller shaft and everything in a sealed unit

Get the biggest drains put in your tank when you set it up then you can add more flow if needed the worst thing you can do is get a tank made and the drains can't keep up with the flow

More flow will air the water better and will if I remember right keep the redox high

But keep it simple the more flow the better


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Great advice were did you hear that lol

Comen sense tells you you will lose power from head height and pump sizes

Just look at wattage to see how much each pump will cost to run

Make sure you can fit the pump in your sump

I use the pond pump types with the plastic cage around them that acts as a pre filter in a pond I strip all the plastic off and place the bare pump in the sump

Also don't just use 1 pump use 2 or more so if one stops you have something still running

Buy spare impellers for all the pumps just incase as you don't want to wait a week for a new one to be delivered
Impellers are the only thing that ever go in pond pumps and some are expensive but others are cheap
My 18,000 lph pump the impellers are £18 the 30,000 lph pump the impeller is £56 so find out part prices before buying all my pumps have impeller shaft and everything in a sealed unit

Get the biggest drains put in your tank when you set it up then you can add more flow if needed the worst thing you can do is get a tank made and the drains can't keep up with the flow

More flow will air the water better and will if I remember right keep the redox high

But keep it simple the more flow the better


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It's getting too much when we're going into friction from pipe's etc - it can be much more simple if you just look at the output at the appropriate level of head and get the turnover you are after approximately - i'd have to agree on getting more than 1 pump and sizing your drains to cope with more than whats needed to give further capacity in future
 
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