




Couldn't load pickup availability
Free UK delivery on every order. Packed within 1 business day; typically delivered in 2–4 business days (3–6 for Highlands, islands and NI). Every parcel is tracked.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Free 30-day returns. Email us for a prepaid label — refunds land within 3–5 business days of the return arriving. Your statutory rights always apply on top.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Real people, real answers — email gardenluxe.co.uk@gmail.com with your order number or product question and we will reply within one business day.
Puri Tech Total Alkalinity Increaser Plus is a fast-acting powdered formula designed to raise and stabilize pool alkalinity, helping reduce cloudiness and limit scale formation.
Keeping total alkalinity in the recommended range is essential for balanced pool water. This 20 lb container supplies a concentrated alkalinity increaser that dissolves quickly to adjust pH buffering capacity, which helps sanitizers work more predictably and reduces the chance of mineral deposits and cloudy water when used as part of regular pool maintenance.
Puri Tech’s formulation is designed to dissolve rapidly so you can see changes within hours rather than days. Exact time depends on pool volume, circulation, and current alkalinity level, but the granules are made to integrate efficiently with standard filtration systems.
Raising total alkalinity helps stabilize pH swings that contribute to cloudiness and mineral scaling. While this product addresses alkalinity specifically, keeping alkalinity balanced reduces conditions that lead to haze and scale; for best results combine with proper pH control and regular filtration.
Test your pool’s total alkalinity first and follow recommended dosing charts; add product in small increments rather than all at once. Broadcast granules slowly across the pool with the pump running, or pre-dissolve in a bucket of water for even distribution, and wait several hours before retesting.
Puri Tech Total Alkalinity Increaser Plus is suitable for most plaster, vinyl, and fiberglass pools and is compatible with common sanitizers. Avoid direct contact with pool finishes and refer to manufacturer guidelines for special systems like saltwater chlorinators and fountains.
Who is this for: Pool owners, maintenance technicians, and property managers seeking a reliable, fast-acting alkalinity booster in a bulk 20 lb package. It’s ideal for anyone needing to correct low total alkalinity to protect water clarity, minimize scale risk, and improve the stability of pool chemistry as part of a regular maintenance routine.
Q: How much should I add to raise alkalinity?
A: Test total alkalinity first; dose by pool volume and current level. Use small increments, retesting after several hours to avoid overshooting.
Q: Can I use it with a saltwater pool?
A: Yes, it’s compatible with most saltwater systems, but check your system’s manual and retest chemistry after treatment.
Free UK delivery on every order — packed within 1 business day, arriving in 2–4 business days.
Free 30-day returns — email us for a prepaid label; refunds land within 3–5 business days of the return arriving.
Join the list and we will email you code WELCOME10 — plus honest seasonal picks for the garden. No spam, ever.
