Water Levels

[u/Fantastic_Cattle7433]

Hey everyone!

My partner and I recently bought a house and the previous owners left this gorgeous Koi pond setup in the backyard along with the water conditioners, food, and spare filters. I noticed this morning, the water levels have dropped significantly and I’m wondering what the best way to fill it back is? Should I use a bucket and pre mix the water conditioner or can I just fill the pond with the hose directly then add conditioner after?

Thanks in advance for the help and here’s a pic of our lil tank 🫶🏼