Hi, our "pond from hell" has struck again, I think the 30 year old (badly patched up) liner has had it, we've lost about 4 inches of water over the past couple of weeks. We've decided to go for a new liner, as this will give us the opportunity of re-shaping the pond as the ledge has collapsed to such an extent in place we can't put even the smallest plant pots as they just fall in. Sorry, once again have some questions: We have yew tree roots coming in from either side under the pond, we also live in an area where chalk / large pieces of flint is prevalant just under the topsoil. What is the best liner to use and what preparation would help to protect the liner? i.e. do we need to double up on the liner, or the underlay, or just make sure we have a large amout 2/3 inches(?) of soft sand over the chalk and flint - what would you suggest? Also, what would you recommend as a cheap way of saving the exisitng pond water. Despite constant sunshine and quite a bit of dirt / fertilizer (repotting plants) finding it's way into the pond, there hasn't been any sign of water going green, it's stayed pretty clean (we bought a new Oase vitronic 18w Uv lamp. I'm pretty chuffed that something went right(!). All we have are a few (very large) buckets etc and a clean dustbin sized container, but that's no where near enough to hold the water. As always, many thanks for any help you can give, been going back through your vids "liking" them all.
Thanks for comment. The liners we usually use are 0.75mm green seal or 1mm Firestone. Firestone is great if your budget can allow. Let me know your dimensions and we can get you price with delivery etc. We would recommend using a heavy duty underlay, you don’t need to double up on the liner. The underlay is really strong, you can add extra if you felt it needed it. If you have sharp stones try and remove or angle grind them out if they are really bad or add more underlay. Tree roots tend to grow around the liner due to the weight of water. If you add sand just don’t to too much as it can compress or if the water table comes up a lot it can “thin” causing the liner to lower slightly which can stretch it, then weaken and split. Tbh we don’t use sand, the underlay is that good. Important to make sure you leave enough flex in the liner so when it fills it does t stretch. We are putting one in today so a video will follow shortly if you get stuck cheers
A steel frame paddling pool is what I have used it was still going strong when decommissioned after 3 years outdoors with koi in all year round unheated and didn't freeze not even once !
Thank you! This advise really help change my mind to folds in the pond!
Glad it was helpful!
Very informative as always!
Keep up the good work!
Thanks for the comment glad you liked it!!!
Hi, our "pond from hell" has struck again, I think the 30 year old (badly patched up) liner has had it, we've lost about 4 inches of water over the past couple of weeks.
We've decided to go for a new liner, as this will give us the opportunity of re-shaping the pond as the ledge has collapsed to such an extent in place we can't put even the smallest plant pots as they just fall in.
Sorry, once again have some questions:
We have yew tree roots coming in from either side under the pond, we also live in an area where chalk / large pieces of flint is prevalant just under the topsoil.
What is the best liner to use and what preparation would help to protect the liner?
i.e. do we need to double up on the liner, or the underlay, or just make sure we have a large amout 2/3 inches(?) of soft sand over the chalk and flint - what would you suggest?
Also, what would you recommend as a cheap way of saving the exisitng pond water. Despite constant sunshine and quite a bit of dirt / fertilizer (repotting plants) finding it's way into the pond, there hasn't been any sign of water going green, it's stayed pretty clean (we bought a new Oase vitronic 18w Uv lamp. I'm pretty chuffed that something went right(!). All we have are a few (very large) buckets etc and a clean dustbin sized container, but that's no where near enough to hold the water.
As always, many thanks for any help you can give, been going back through your vids "liking" them all.
Thanks for comment. The liners we usually use are 0.75mm green seal or 1mm Firestone. Firestone is great if your budget can allow. Let me know your dimensions and we can get you price with delivery etc. We would recommend using a heavy duty underlay, you don’t need to double up on the liner. The underlay is really strong, you can add extra if you felt it needed it. If you have sharp stones try and remove or angle grind them out if they are really bad or add more underlay. Tree roots tend to grow around the liner due to the weight of water. If you add sand just don’t to too much as it can compress or if the water table comes up a lot it can “thin” causing the liner to lower slightly which can stretch it, then weaken and split. Tbh we don’t use sand, the underlay is that good. Important to make sure you leave enough flex in the liner so when it fills it does t stretch. We are putting one in today so a video will follow shortly if you get stuck cheers
A steel frame paddling pool is what I have used it was still going strong when decommissioned after 3 years outdoors with koi in all year round unheated and didn't freeze not even once !