Orders over $499
Hard-to-find varieties
Only the best for your grow
AC Infinity Self Watering Base - 4PK
The AC Infinity Self Watering Base is a set of four patented reservoir trays that convert fabric pots into bottom-watering planters, holding a reserve of water beneath each pot and feeding it upward as the plant draws the level down. It is the platform of AC Infinity's watering range: each tray carries one pot from the AC Infinity Fabric Pots - 5PK, and the whole pack can later be upgraded to automatic refilling. For growers running fabric pots indoors it solves two problems at once, unattended watering between visits and the runoff that otherwise ends up on the tent floor.
Each base assembles from five parts: a matte black water basin, a drain plate raised on a central support column, a rising water meter, a strainer-capped water spout and a set of high-absorption wick lines. The wick lines thread through holes in the drain plate to rest on the basin floor, drawing water and dissolved water-soluble fertiliser up into the lower third of the fabric pot, while the elevated plate keeps the pot itself clear of standing water and the buildup that forms in it. The manual specifies two 45.7 cm (1.5 ft) wicks through the inner holes for pots up to 11.4 L (3 gal), and two 61 cm (2 ft) wicks through the outer holes for 18.9 L to 26.5 L (5 to 7 gal) pots; running a single wick reduces the feed rate. Drainage holes in the plate collect runoff from the base and sides of the pot into the basin below, where the wicks cycle it back up, and the water meter rises and falls with the reservoir so the remaining reserve is visible without lifting anything. The bottom-watering design is covered by US Patent #11877546.
The Standard tray (model AC-SPA5-4) fits 18.9 L (5 gal) fabric pots with a 3.8 L (1 gal) reservoir, measuring 42.0 cm (16.53") across by 8.0 cm (3.18") tall; the XL (AC-SPA9-4) fits 37.9 L (10 gal) pots with an 8.5 L (2.25 gal) reservoir at 58.4 cm (22.97") by 9.1 cm (3.60"). Both are rated to 45 kg (100 lb) of planted weight and come four to a pack. Self-watering action only begins once roots reach the bottom of the pot, so young transplants still need top watering at first, and the basin and wick lines want a clean roughly every two weeks to stay ahead of mineral buildup, algae and pests. Adding the AC Infinity Self Watering Base Valve Kit - 4PK replaces manual refilling with gravity-fed top-ups from a raised reservoir. Its wick-line delivery keeps the lower root zone evenly moist while the elevated drain plate stops the pot ever sitting in water, and the rising meter shows exactly when the spout needs a refill.
NOTE: the 45 kg (100 lb) rating is planted weight only - never stand on the base. Do not twist a seated pot to reposition it, as twisting can pull the wick lines out of the water.

Wick-Fed Watering
Wick lines draw water and dissolved fertiliser steadily up into the lower root zone of each fabric pot.
Visible Water Meter
A rising gauge shows the remaining reserve at a glance, with a spout for refilling and draining.
45 kg Load Rated
Each matte black tray supports up to 45 kg (100 lb) of fully watered planted weight.
Back-Order
Free delivery:
on all orders over
$499!
2 Years warranty · 30-day returns
Secure checkout
with
Buy with confidence
-
Talk to a real grower
Not sure it suits your setup? Call our Youngtown team on
0481 526 666.
-
Price Beat Guarantee
Found it cheaper elsewhere? We'll
beat any competitor's price by 5%.
-
Tasmania's own hydroponics shop
Buy online & collect in-store at 2/322 Hobart Rd, Youngtown TAS, usually within the hour.


AC Infinity Self Watering Base - 4PK
Key Highlights
expand_more
- Patented bottom-watering design, US Patent #11877546
- Wick lines feed water and dissolved fertiliser to the lower third of the pot
- Standard: 3.8 L (1 gal) reservoir for 18.9 L (5 gal) pots; XL: 8.5 L (2.25 gal) for 37.9 L (10 gal)
- Elevated drain plate keeps the pot clear of standing water and algae
- Runoff from the pot collects in the basin and recycles back up the wicks
- Four matte black trays per pack, backed by a 2 year warranty
- Valve kit upgrade converts refilling from manual to automatic
Directions for Use
expand_more
- Fit the drain plate onto its support column inside the water basin.
- Thread two wick lines through the drain plate so their ends rest flat on the basin floor: inner holes with 45.7 cm (1.5 ft) wicks for pots up to 11.4 L (3 gal), outer holes with 61 cm (2 ft) wicks for 18.9 L to 26.5 L (5 to 7 gal) pots.
- Sit the fabric pot centrally on the drain plate. Never twist a seated pot to reposition it, as twisting can pull the wick lines out of the water.
- Fill the reservoir through the water spout until the water meter reads full.
- Top water new transplants until roots reach the bottom of the pot; self-watering begins once leaves sit level with the pot rim or roots show through the pot base.
- Check the meter and refill through the spout as the reserve runs down.
- Every two weeks, drain via the spout and clean the basin and wick lines to prevent mineral buildup, algae and pests.
Technical Specifications
expand_more
Standard (AC-SPA5-4)
- Product Model: AC-SPA5-4
- UPC Code: 819137022706
- Pot Fitment: 18.9 L (5 gal) fabric pots
- Water Capacity: 3.8 L (1 gal)
- Diameter: 42.0 cm (16.53")
- Height: 8.0 cm (3.18")
XL (AC-SPA9-4)
- Product Model: AC-SPA9-4
- UPC Code: 819137024182
- Pot Fitment: 37.9 L (10 gal) fabric pots
- Water Capacity: 8.5 L (2.25 gal)
- Diameter: 58.4 cm (22.97")
- Height: 9.1 cm (3.60")
All Models
- Weight Capacity: 45 kg (100 lb)
- Included Components: Water basin, drain plate with support column, water meter, water spout, wick lines
- Colour: Matte black
- Units Per Pack: 4 trays
- Patent: US Patent #11877546
- Warranty: 2 Years
Resources
expand_more
Shipping & Returns
expand_more
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.
Size: Standard