Water pump for rainwater pumping from one IBC tank to the other

[JohnBishop]

Hi,
Please can you advise on a water pump to pump rainwater from one IBC tank to the other.
I have filled up one and now want to transfer water from the bottom tank to the top tank.
I know there are these immersion pumps like this one https://www.kaercher.com/uk/home-garden/drainage-pumps/sp-16-000-dual-16458330.html?utm_source=google-feed&utm_medium=cpc&utm_content=16458330&utm_name=SP 16.000 Dual&cid=ps_ggl_pmax_categ&gad_source=5&gclid=EAIaIQobChMI8ome3qHwigMVFZiDBx1iQxRrEAQYAyABEgIHIPD_BwE

but I won't be able to insert one from the top so it must be some inline water pump. I have looked up and found this one https://www.amazon.com/Seaflo-12v-Water-Pressure-Pump/dp/B01CPIHFSY
 

What do you think?

Thanks

[JohnMo]

Can you not use gravity. Connect the two outlets and let them self balance level wise. Put a tee in as an outlet to tap or what ever.

 

All the bits you need are on here

 

https://ibcadapters.co.uk/index.asp

[JohnBishop]

1 hour ago, JohnMo said:

Can you not use gravity. Connect the two outlets and let them self balance level wise. Put a tee in as an outlet to tap or what ever.

 

All the bits you need are on here

 

https://ibcadapters.co.uk/index.asp

Thanks for the link.
The empty tank is on top of the full one.