Frequently Asked Questions

Shipping, Orders, and Returns
Hydroponics System
Auto Watering System
Smart Planters
When will the shipment be dispatched? From where will it be sent?
Orders are processed for shipment within 1-2 business days and shipped from global warehouse based on your address. For more information please visit our Shipping Policy
When will I receive my product?
Once you place your order, you will receive a confirmation email, and the tracking number will be sent to you automatically by the follow-up emails. You can track the shipping status at Track Your Order page. If you need any help with your order, please contact us via service@letpot.com and we're happy to help you.
I received the product, but it's missing accessories.
Don't worry, we will help! Please simply send your message to service@letpot.com or use the Contact Us form to submit any issues with your order, we will promptly assist you. Please make sure to provide all necessary information such as missing item name ( you can check with paper manual ) as well as the order number and your shipping address, we will reship the item within 48 hours.
How do I return my product?
All LetPot products have a 30-day worry-free return policy and 1 year warranty. For more information, For more information please visit our Refund Policy
My sponge has grown algae and mold. How can I prevent this?
If your plants are still small, you can try reseeding with the following steps:
  1. Remove the old plants, thoroughly drain and rinse the water tank. Discard all sponges or plants that have been in contact with mold/algae, and clean the used planting baskets and lids. Keep all accessories used in the system clean and place new sponges in the baskets.
  2. Plant 2-3 seeds in each new sponge.
  3. Apply green light-blocking stickers (this helps prevent algae growth).
  4. Cover with a clear seedling cover (this helps maintain humidity and moisture during the germination stage).
  5. Place the light panel about 4-6 inches away from the plants.
  6. Once the seeds have grown 2-3 leaves, remove the clear seedling cover. For larger plants like tomatoes, keep only the best-growing seedling in each sponge. For smaller plants like herbs, keeping 1-2 seedlings per sponge is sufficient.
If your plants are already mature, you can use a cotton swab dipped in hydrogen peroxide, then apply it to the surface of the sponge where algae or mold is growing. This can eliminate and inhibit the growth of mold.
Only a small portion of my plants is growing & my plants have wilted.
The quality of seeds plays a crucial role in plant growth. For optimal results, we recommend purchasing seeds from reputable brands and supermarkets, ensuring the growth temperature of the plant is suitable for your current environment. Store seeds in a cool place or in the refrigerator. Here are our suggestions for selecting seeds:
  • Check the expiration date of the seeds when purchasing.
  • Avoid buying and using white or green seeds. Look for quality seeds in darker colors like gray, brown, or black.
  • Examine the surface of the seeds. Look for seeds that appear glossy and reflect light. They should also have a firm and smooth texture.
  • Consider the symmetry and shape of the seeds. Look for seeds that are symmetrical and teardrop-shaped, as deformities or unevenness may indicate poor quality or immaturity.
Wilting plants could also be due to excessively high nutrient concentration. Ensure the correct ratio of nutrient solution to water to avoid high concentrations. Additionally, maintain about a 4-6 inch distance between the LED light panel and the plants. If you're unsure why your plants are wilting, feel free to send us pictures or ask other members in the LetPot community. We would be more than happy to help.
The seed pods show some kind of fungus when germinating
Please check the quality and storage of the seeds first. If it's not a seed issue, follow these steps for planting:
  1. 1. Plant 2-3 seeds in each pod.
  2. 2. Cover with the green light-blocking sticker, remove the central circle.
  3. 3. Cover with the transparent germination dome (remove when 2-3 leaves appear, no need to remove the sticker as plants will grow through it).
  4. 4. Position the light about 4 inches away from the seeds (6-8 hours of light during germination is sufficient).
For larger seeds like spinach, beet, and cilantro, you can germinate them on a moist paper towel in a sandwich (transparent) bag first. Once they sprout, gently transfer them to the sponge pods using tweezers or your fingers. This helps improve germination rates and reduces mold.
Can the sponge be reused?
We do not recommend reusing sponges, as their effectiveness may not be as good as when first used. Moreover, reusing old sponges might introduce bacteria and potentially lead to diseases. However, to support environmental sustainability, the white baskets and clear light covers can be reused after thorough cleaning. You can also purchase cost-effective sponge refill packs at a discounted price from our official website, or the store where you purchased your hydroponic system.
Can I transplant the sponge and the plants from the hydroponic system into soil?
When the roots of the plants are well developed (visible white roots extending from the sponge), you can transplant them from the hydroponic system to other pots or garden soil. All our sponges are made of biocarbon material, which is biodegradable in soil and does not harm the environment. Therefore, transplanting the plants along with the sponge can enhance their survival rate. Please ensure to minimize pruning and damage to the roots when removing the sponge from the white basket, to maintain the plants in good condition.
The LED light is not turning on.
The LED light will only turn on during the set times. Please check if the current time is within the scheduled working hours, and also ensure that the connection of the LED light pole is secure. If your LED light is malfunctioning, please take pictures and send them to us, and we will resolve the issue as soon as possible.
The ratio of nutrient solution to water, and the choice of water.
The ratio of LetPot's plant food to water is 5mL of A & B each per 1L of water. Ordinary tap water can usually be used. If the water quality is uncontrollable or there is a need to adjust trace elements, consider using purified water.
How do I clean my water tank?
If you notice dirt or debris in the water tank, we recommend wiping the interior with a soft, damp cloth or wet wipe.
  1. Turn off the power, unplug the power cord,
  2. Remove the light panel and the telescopic rod.
Rinse the water tank with clean water. Avoid using detergents, as they may negatively affect plant growth. During the cleaning process, ensure that the light panel, telescopic rod, and power interface do not come into contact with water to avoid damaging the circuitry. Additionally, try to prevent the hydroponic system's screen (MAX/PRO) from coming into direct contact with water.
How to clean my water pump?
Under normal use, the water pump does not require regular cleaning. We recommend cleaning the pump and its filter sponge after at least six months of use. If you wish to clean the water pump, please follow these steps:
  1. Turn off the power and unplug the power cord.
  2. Press the latch on the side of the pump to open the pump cover.
  3. Remove the sponge in front of the pump and rinse it thoroughly with clean water. Avoid using detergents as they may disrupt the nutrient balance. If the sponge is very dirty, you can also consider soaking the entire pump in clean water and gently shaking it to remove any debris, thus rinsing the whole pump.
  4. Reassemble the components and restart the machine.
If you need instructions for disassembling the pump for a thorough cleaning, please contact us or refer to the following steps: Images & Videos (Click to view how to clean the LetPot water pump) .
The water pump is not working.
The water pump operates automatically for 30 minutes and then pauses for 30 minutes. It will start its cycle automatically when the device is powered on, and its silent design makes it barely noticeable when it's working. There might be a slight vibration on the outer wall of the water tank while the pump is running. If your water pump experiences a malfunction, it's often due to impurities or blockage within the water tank, such as roots clogging the pump. You can remove the sponge, rinse it with clean water, and reset it to resolve this issue. If you wish to perform a more thorough cleaning of your water pump, you can refer to the following steps: (Click to view) . If your water pump still doesn't work after cleaning, please contact us, and we will promptly assist you in resolving the problem.
Will personalized settings be saved if the device loses power or is turned off?
Once the hydroponic system is successfully connected to Wi-Fi, the settings will be retained even in the event of a power outage. However, if the system has never been connected to Wi-Fi and the application, it will revert to the default settings after losing power.
The LetPot App registration can't receive the verification code.
Please check if your email inbox is full and also look in your spam folder for the verification code. Due to different email service providers' requirements, sometimes it may not be possible to receive the code. You can contact us through the APP, we will assist you in registering your account and sending you the code as soon as possible.
What is the proper way to apply stickers?
Stick it on top of the sponge pod where the seed has been placed, remove the central circle, and finally put on the transparent cover. No need to remove the remaining sticker as plants will grow through it, the sticker around the pod is to prevent green alage.
Unable to connect to the router & Wi-Fi connection issues.
Please check the following situations that may cause Wi-Fi connection issues:
  1. Please confirm that the Wi-Fi password is correct. Double-check the letter case and ensure the password length is accurate. You can try connecting to the Wi-Fi using your phone and entering the password to verify its correctness.
  2. Our product only supports 2.4GHz Wi-Fi. If your router has both 2.4GHz and 5GHz dual-band Wi-Fi, please ask your router service provider to set different SSIDs and passwords for these two frequency bands. Then, on the device's Wi-Fi search page in the app, select the 2.4GHz Wi-Fi to successfully connect.
  3. You can also try changing to a different Wi-Fi network or create a Wi-Fi hotspot on your phone for LetPot to connect to. This can help confirm if your device can connect to the internet properly. If the issue persists, please contact us through the APP or service@letpot.com email, and we will assist you in resolving the problem promptly.
Unable to discover the device via Bluetooth.
  1. Ensure that the device is not already listed in your app's device list.
  2. When adding a device, please make sure to turn on your phone's Bluetooth and allow the app to access Bluetooth. If you are an Android user, grant the app permission to access nearby devices and precise location.
The water pump is malfunctioning and not working.
To improve soil moisture absorption, the default setting for the drip irrigation system is to work for 30 seconds and then pause for 30 seconds. You can also customize these parameters. If your water pump is malfunctioning, please send us a brief video through email or the app, and we will promptly assist you in resolving the issue.
The drip was washed away / blew out.
Adding an extra dripper at the end and connecting it with pipe back to your water container allows you to balance the water pressure of each dripper. Just give it a pressure release back to the tank can solve the dripper blow out problem. Unless you are watering a lot of pots & using a lot of drippers, a return line to the water container is essential. Cause the pump can deliver a fair bit of pressure, when using just a few drippers, the water pressure might blow out the weakest joint.
The water flow cannot reach some of the dripper at the back.
When the dripper at the back isn't watering properly, try adjusting the flow rate of the front dripper valve to balance the water pressure for each dripper. This ensures enough pressure reaches the pots at the back. Then you can extend the watering duration to ensure sufficient water.
The drip irrigation system is not stopping the water flow and is experiencing a siphoning effect.
If the device is still dripping water outside of its designated working hours, it indicates a siphoning effect. First, check if you have connected the white check valve to the hose coming from the water pump's outlet. The check valve can effectively reduce the continuous dripping caused by siphoning effects.
Water is not reaching the plants in the back.
In most cases, this situation occurs because the drip heads in the front have a higher water flow rate or the plants in the back are positioned too high (the height difference between the controller and the plants should not exceed 2 meters), causing the water to not reach the plants in the back. If you have many pots to water, you can try slightly tightening the valves on the front drip heads and extending the duration of each watering session to control the water volume and balance the water flow among the different drip heads.
The water hose is too rigid and difficult to install.
Dealing with a tough hose? Our thickened PE hoses are built strong to ensure no leaks, even at room temperature. But we know they can be a bit of a challenge to fit on your first try. Here's a tip: just soak the end of the hose in warm water (make sure it's over 70 degrees Celsius) to soften it up. This will make fitting and connecting the accessories much easier.
The dripper keeps leaking after turning off (Siphon effect)
Ensure that the drippers and pots are placed higher than the water tank to prevent siphon effect.
What is the maximum pumping height for the pump?
2 meters in height (Approximately 6.56 feet).
The LetPot App registration cannot receive the verification code.
Please check if your email inbox is full and also look in your spam folder for the verification code. Due to different email service providers' requirements, sometimes it may not be possible to receive the code. You can contact us through the app or our service email, and we will assist you in registering your account and sending you the code as soon as possible.
What's the size of every planter?
The size of a single hydroponics planter is :17cmx16cmx14cm, the size of a single soil planter is 17cmx16cmx22.5cm.
What's the type of power plug?
We will provide different power plugs according to different countries.
Does the set include water pipe and water tank?
Yes, LetPot smart garden is a full set. You can check more details in what's in the box section on the details page. Each set of LetPot package are includes 2M length inlet&outlet water pipe.
The LetPot App registration cannot receive the verification code.
Please check if your email inbox is full and also look in your spam folder for the verification code. Due to different email service providers' requirements, sometimes it may not be possible to receive the code. You can contact us through the app or our service email, and we will assist you in registering your account and sending you the code as soon as possible.
If the above FAQs don't resolve your queries, you can click the button below to seek assistance from customer service.
For any technical issues or queries related to the APP, you can resolve them by contacting the customer service (technical team) within the APP.We will get back to you within 12-72 hours!
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