Above ground pool recommendations?

Hi all

Thanks firstly to everyone who is being so helpful in answering our (many, many) questions as we navigate the minefield of purchasing in Spain! We are looking to purchase a property classified as "rural" and realise that we would have to get permission to put in a pool....however we understand that above ground pools are admissible as long as they are not permanent structures. Has anyone put in an above ground, large pool? If so can you recommend a company to supply them and/or a particular model? 

many thanks

Sara and Phil