You did not prep correctly. All previous acting needed to be fully removed.

Thank you. Will try a stripper today. Do you happen to know why the colour was inconsistent and so dark almost black in places? Want to make sure this...

Strip off what you can and then sand the rest off. Brighten last. Not easy to remove a new coat of stain but the only way to fix this.

You have to strip and brighten for prep. Use the Restore A Deck Stripper Kits. Stain with TWP or Armstrong Clark.

Yes, correct. Strip and brighten the wood. The only reason it would have failed is if you over-applied or it dried on top of the wood instead of in th...

Not even 2 years have passsed and after stripping, sanding, brightening, and staining there are areas where the Restore-a-deck stain has completely fl...

It will not be needed there as well.

@administrator My porch columns sit on top of the floor boards. Should I not be worried about water soaking into the untreated wood there? I und...

Sealing all sides may cause wood rot and our opinion is the same opinion as 99% of all stain manufacturers on this. The wood needs to breathe and not ...

@administrator What is protecting the wood when water gets into the tongue and groove? What's protecting the wood that's sitting on beams and joi...

You cannot prestain new wood nor do you need to stain all sides. Best to install, weather the wood, prep, and just stain the exposed wood.

Bad prep and application. You will have to fully remove to fix and that will not be easy. Strip and sand. Brighten last.