I have a small pool about 5x5 m. It is not that useful and I'm wondering if it is worth it to just extend one end along the side of my house (which has about 1.8 m gap to the boundary wall), so that the longest stretch would be 10 m. Alternative would be to get a counter current system? Does any one have any experience with counter current systems? Reliable?

I got a Spanish counter current system. When it was working the swim wasn’t very comfortable. Especially if your pool is shallow. After a year it broke down. 

Hello everyone! When it comes to quality plumbing fixtures and innovative bathroom solutions, Kohler is a brand that stands out. Renowned for its commitment to excellence, Kohler has been a trusted name in the industry for years. To explore their wide range of products and understand why many customers choose Kohler, I recommend checking kohler reviews at https://kohler.pissedconsumer.com/review.html . It's an excellent way to learn about the experiences of other users and make informed decisions when considering Kohler for your bathroom needs.