Slurry storage options

just do it

Is there rules of thumb as to when either a lagoon or above ground tank become more economical than slayed tanks?

onyerbikepat

http://www.teagasc.ie/environment/publications/other/Buildings/build_feat_111106.pdf

Greengrass1

just do it wrote: »

Is there rules of thumb as to when either a lagoon or above ground tank become more economical than slayed tanks?

Friend putting in lagoon for 150 cows atm
Says its costing 30k job done and dusted.
Said same size tank in concrete with stats was 90k
Seems a bit much imo

Milked out

Greengrass1 wrote: »

Friend putting in lagoon for 150 cows atm
Says its costing 30k job done and dusted.
Said same size tank in concrete with stats was 90k
Seems a bit much imo

What was the equivalent concrete tank without slats? They could be added later with a roof if planned right maybe?

Milked out

just do it wrote: »

Is there rules of thumb as to when either a lagoon or above ground tank become more economical than slayed tanks?

I find if you have a good mixing system with the tower it's the job as you can spread whenever you want, without having to spend a day agitating.

Greengrass1

Milked out wrote: »

What was the equivalent concrete tank without slats? They could be added later with a roof if planned right maybe?

Never asked that. Its a 50m x45m lagoon now I think.
He's going outdoor cubicle route

just do it

Greengrass1 wrote: »

Never asked that. Its a 50m x45m lagoon now I think.
He's going outdoor cubicle route

+ automatic scrappers straight to lagoon?

Greengrass1

just do it wrote: »

+ automatic scrappers straight to lagoon?

Nor yet. He will in time im sure. Cubicles not going in till November

solwhit2

They don't be long filling in January and February when there is heavy rain breaks my heart drawing water out of it.my neighbour put in a tower 7 years ago and reckons it was a great investment it cost him about 20 grand .

Greengrass1

solwhit2 wrote: »

They don't be long filling in January and February when there is heavy rain breaks my heart drawing water out of it.my neighbour put in a tower 7 years ago and reckons it was a great investment it cost him about 20 grand .

How many m3 does it hold? Concrete or steel?

solwhit2

Greengrass1 wrote: »

How many m3 does it hold? Concrete or steel?

Steel , he says it takes just over 200 thousand gallons. There is actually a lot of them up around my area but these lads are all milking over a 100 cows.it seems quiet cheap but would the last long?.There must be some pressure on them when there full.

Greengrass1

solwhit2 wrote: »

Steel , he says it takes just over 200 thousand gallons. There is actually a lot of them up around my area but these lads are all milking over a 100 cows.it seems quiet cheap but would the last long?.There must be some pressure on them when there full.

As lonv as a underground tank I believe.
Grant made thay tank so cheap

frazzledhome

What's the largest you can go with tower

mahoney_j

frazzledhome wrote: »

What's the largest you can go with tower

Neighbour has one for 400 k gallons I have a 180 k finrone steel tank can add an extra ring and another 60 k gallons

frazzledhome

mahoney_j wrote: »

Neighbour has one for 400 k gallons I have a 180 k finrone steel tank can add an extra ring and another 60 k gallons

Approx what ground area would 400k cover?

mahoney_j

frazzledhome wrote: »

Approx what ground area would 400k cover?

No answer for that sorry!.

just do it

solwhit2 wrote: »

They don't be long filling in January and February when there is heavy rain breaks my heart drawing water out of it.my neighbour put in a tower 7 years ago and reckons it was a great investment it cost him about 20 grand .

Yes in high rainfall areas the cost comparison is different alright. What's the story with agitation and drawing slurry from towers?

darragh_haven

frazzledhome wrote: »

What's the largest you can go with tower

The largest I've seen with a precast concrete tower is 4240m3 (933,000 gals), from 2 different companies. Seen a 630,000 gal glass lined steel tank in NI on a big dairy unit - 27m diameter by 5m high

darragh_haven

frazzledhome wrote: »

Approx what ground area would 400k cover?

70 square meters. - but thats depending on what height different suppliers would give you.

Scrap that... totally wrong

darragh_haven

just do it wrote: »

Yes in high rainfall areas the cost comparison is different alright. What's the story with agitation and drawing slurry from towers?

Mostly a reception pit under ground that would hold 5000 gals approx, slam shut valve between the tower and reception pit. Vacuum tank it out of that then.

frazzledhome

darragh_haven wrote: »

The largest I've seen with a precast concrete tower is 4240m3 (933,000 gals), from 2 different companies. Seen a 630,000 gal glass lined steel tank in NI on a big dairy unit - 27m diameter by 5m high

That's 575 m2
1.25 acre?
Am I right?

Greengrass1

darragh_haven wrote: »

The largest I've seen with a precast concrete tower is 4240m3 (933,000 gals), from 2 different companies. Seen a 630,000 gal glass lined steel tank in NI on a big dairy unit - 27m diameter by 5m high

Christ that puts my 1000m3 in the corner

C0N0R

frazzledhome wrote: »

That's 575 m2
1.25 acre?
Am I right?

Correct, hardly small!! Wouldnt be quick to empty!!

C0N0R

Need another 200m3 of slurry storage, at that size am I just better off going for a slatted tank?

darragh_haven

frazzledhome wrote: »

That's 575 m2
1.25 acre?
Am I right?

I'm getting 0.142 acres area..... am I getting it totally arseways?

Greengrass1

darragh_haven wrote: »

I'm getting 0.142 acres area..... am I getting it totally arseways?

10000 square metres in ha
729 square meteres taken uo by tgat tank you seen in north.
Im getting 0.19

just do it

darragh_haven wrote: »

I'm getting 0.142 acres area..... am I getting it totally arseways?

darragh_haven

Greengrass1 wrote: »

10000 square metres in ha
729 square meteres taken uo by tgat tank you seen in north.
Im getting 0.19

Yeah. The 30m diameter tank takes up 0.19 acres.

The 27m tank takes up 0.142

A cow called Daisy

Volume of cylinder is pi × radius squared × height

→22/7×12^2×4
→22/7×144×4 = 1, 810 M3 (400k gallons approx

So a tank with radius of 12 Meters (diameter 24 M) and 4 meters high would hold 400k.
Assume that tank 4m high but I think dept. take some height for what they call freeboard

4M would be a 3 band tank

frazzledhome

darragh_haven wrote: »

I'm getting 0.142 acres area..... am I getting it totally arseways?

You are right

Sam Kade

A cow called Daisy wrote: »

Volume of cylinder is pi × radius squared × height

→22/7×12^2×4
→22/7×144×4 = 1, 810 M3 (400k gallons approx

So a tank with radius of 12 Meters (diameter 24 M) and 4 meters high would hold 400k.
Assume that tank 4m high but I think dept. take some height for what they call freeboard

4M would be a 3 band tank

Spot on Daisy, I would be old school cubic ft x 6.25 gallons. Why do you write pie (3.14) as a sum?

mf240

It would be (in irish builders terms) a fair size.

A cow called Daisy

Sam Kade wrote: »

Spot on Daisy, I would be old school cubic ft x 6.25 gallons. Why do you write pie (3.14) as a sum?

Simply because I post of phone and the is no symbol for it (pi) on phone.:)
While on subject of converting
Cubic feet multiplied by 0.02832 gives cubic meters (1000 litres)
Cubic meters multiplied by 35.31 gives cubic feet

Obviously dividing by same also works in reverse.

just do it

Thanks be to god for the smartphone, saves doing all these calculations!

C0N0R

Ah yea correct, there is 10,000 square metres in a hectare not 1,000 my bad!

kevthegaff

I have one that holds 200k gallons put in 40 years ago with 10k gallon tank underneath, there was an awful crust this so we dug it out with a trackndigger on a lowloader, theres no propellor on mine so it can be hard to agitate!

onyerbikepat

As for the pressure in these overground tanks, it's actually very little. Every 10metres in height would only give 1 Bar water (slury) pressure.

just do it

onyerbikepat wrote: »

As for the pressure in these overground tanks, it's actually very little. Every 10metres in height would only give 1 Bar water (slury) pressure.

There's an engineer talking