IWS Troubleshooting

In the unlikely event that you are experiencing a problem with your system, please follow the steps below in order to isolate and rectify the problem.

My system fills, but doesn't drain?

Solution - This is usually a problem with the pump in the brain pot. If the pump is vibrating but not pumping it will be either have an air lock or blocked.

Simply twist the pump so the inlet faces up, if air bubbles are released and the pump starts working the problem is fixed. This is sometimes caused by the brain inlet pouring water onto or near the pump. If this is the case, simply turn the elbow fitting so the water pours onto the side of the brain pot and does not splash the surface of the water.

If the pump is vibrating in the brain pot, and does not release any air bubbles when turned it may be blocked. Servicing the pump is easy and should be carried out at the end of each growing cycle. Firstly turn the power off, then remove the front of the Maxijet 1000 by turning the puump outlet until the tabs holding the cover in place are free. Once removed simply pull the impeller out of the shaft and inspect the impeller for damage and inspect the outlet for debris. Remove any debris, replace the impeller followed by the pump case. Once re assembled, plug back in and check that the pump works correctly.

If the pump in the brain pot is not vibrating or pumping then check the bottom float switch. This should move move freely, clean with water if not.

If after trying these solutions your system is still not working you will need to contact the retailer you bought the system from.

My system won't stop filling/my pots are over flowing?

Solution - This is usually down to a siphoning effect that causes the pump in the reservoir to keep filling the brain pot when the pump switches off.

Check that the anti-siphon valve in the reservoir is not underwater or blocked. The anti-siphon valve should be near the top of the reservoir. This allows air into the pipe when the pump turns off to stop the water from flowing. If your system does not have an anti-siphon valve you will have a small hole drilled in the pipe work coming up from the pump at the top of the reservoir. Check that this is not blocked.

If the pump is not siphoning and carries on filling the brain pot at full power then it may be down to a faulty top float switch in the brain pot. Make sure that the float switch is clean and free from debris, by cleaning with clean water.

If after trying these solutions your system is still not working you will need to contact the retailer you bought the system from.

Some of my pots are over-flooding?

Solution - This is usually due to an uneven floor and some or all of the pots are lower than the brain then you will get some over filling. You must ensure that all pots are at the same level as the brain pot, this is essential to how the systems works.

Why is the EC/CF rising rapidly in the reservoir?

Solution - Nutrient strength normally rises slowly in the reservoir as plants use more water than nutrients. If your temperatures are high (above 29ºC) and relative humidity is constantly low (below 50%) the rise in nutrient strength will be accelerated. This is due to the plants using more water than nutrients in these conditions, causing the nutrient to accumulate  in the pots between feeds. Add more water to the reservoir to dilute the nutrient strength and consider only topping your reservoir up with half strength nutrient to combat this.

This could also be that your flood frequency is too low and the growing media is being allowed to dry out too much between flood cycles. Consider increasing the flood frequency.

Why is the pH dropping rapidly in the reservoir?

Solution - pH drop can sometimes be a normal occurrence during the transitional phase from vegetative growth to flowering/fruiting. Adjusting back up with potassium hydroxide (pH up) or potassium silicate (Silicon) is recommended.

If the pH is dropping rapidly then it may be a sign of over-watering. If your flood frequency is too high and water is constantly saturating the growing media then oxygen levels will become depleted, this drop in oxygen will cause the pH to fall. Check your growing media is not staying too wet between feed cycles, if it is, consider reducing the flood frequency.

Why is the pH rising rapidly in the reservoir?

Solution - pH will normally rise slowly in the reservoir due to normal nutrient uptake by the plants. If you are finding the pH is climbing rapidly and you are adding lots of pH down it is normally due to clay pebbles that have not been washed properly and they have not beed pre-treated with nutrient solution at the correct pH, a pH rise can happen in early growth. The pH will stabilise given time. If you are adding lots of pH down we recommend you use a mixture of nitric acid and phosphoric acid, this will help the balance of minerals in the nutrient solution.

If you continue to have problems contact your Nutriculture Grow Systems retailer.

Please note: Any attempt to open or tamper with the system may cause electric shocks and will invalidate your systems warranty.