Growth Technology pH Down
PH Down
Growth Technology pH DOWN contains orthophosphoric acid (H3PO4). The concentration is 81%, which is very strong so handle with care. Some other products on the market are considerably weaker, so check the concentration before buying. This is a very dense liquid and should feel much heavier than water.
What pH Down Does
The concentrated phosphoric acid pH Down can be added to almost all liquids to lower the pH. It is important to maintain a pH range when growing plants using hydroponics and aeroponics. Each plant has its own requirements, but most require a pH of between 5.5 and 6.5. To maintain this pH level, pH Down can be added to the nutrient solution sparingly.
How to use pH down
PH Up and Down can react explosively to each other if they come in contact. Even small amounts of pH Up or pH Down could explode. Both pH Up and pH Down are corrosive, and can cause skin irritation and even burns. Use with caution and keep out of reach of children.High Quality pH adjustment in a bottle. Features CRC cap for safety. Highly concentrated so only a little is needed. Always dilute prior to use.
Mainland England & Wales
- Orders over £50 are Free Standard Delivery.
- Orders under £50 are £4.50 Standard Delivery
- Next Day Delivery £6.99
We ship parcels using DHL tracked Service. DHL will send you tracking information by email or text to inform you know when they will be delivering your parcel.
Small items are sent via a Royal Mail tracked service.
Our cut-off time for deliveries to leave us the same day is 3pm Monday to Friday.
In Stock: 1 - 2 Working Days
Out of Stock: 2 - 4 Working Days
Items Marked 'Out of Stock' on the website are not currently available from our supplier. Please call or email & we will update you when available.
If any item ordered is unavailable we will contact you by email or phone with expected delivery times. We only debit orders on dispatch so should you wish to cancel, we will do so.
Free Product Exchange:
We allow 30 days for a product exchange. On receipt of the original unused items we will return your exchange carriage free.
Terms and conditions apply.
Scottish Highlands / Northern Ireland
- In Stock: £13.99 Delivery 1 to 2 Working Days
The cut off time for deliveries to leave us the same day is 3pm Monday to Friday.
We ship using DHL tracked service. DHL will send tracking information by email or text so you know when they will be delivering your parcel.
Small items are sent via a Royal Mail tracked service.
Free Collection:
Please arrange a collection time and date with our team if you wish to collect your order.
