What kind of chlorine tablets do I use with this type of chlorinator? Do you sell them?
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You can use either 1" or 3" tablets. We sell both - here is a link to the chlorine tablets: http://www.inyopools.com/chemicals_sanitizers.aspx
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Is there a feedback mechanism that tells the unit the chlorine balance in the pool? Is this a way for me to automate addition of clorine to keep it always at the correct level? Or, just another place to put the tab aside from the the drain basket?
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There is a dial on this unit which has a setting from 1-10 If you set the dial on 1 it will be letting the least amount of chlorine to the pool and if you have it set at 10 this would send the most amount of chlorine to the pool. So you can automate the feed of chlorine to the pool but you will still need to manually test your water. We do not recommend placing tablets in the skimmer basket because this high concentration of chlorine goes directly back to your pump and can cause corrosion to your pool equipment. If you do not go with the automatic chlorinator we would recommend at least going with one of our floating chlorinators so you do not damage your equipment you may view our floating chlorinators here http://www.inyopools.com/chlorinators_floating.aspx
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What is the difference between an inline and offline chlorinator?
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An inline chlorinator would be plumbed directly inline with the plumbing. For an existing pool, this would mean a section of pipe would need to be cut out to install the chlorinator. An offline chlorinator attaches to existing plumbing by chlorinator tubing (holes would be drilled into existing pipe to attach the tubing.)
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I looked at the Rainbow 300 Chlorinator diagram and did not see any valve that would automatically release chlorine gas build up in the canister. Is that correct?
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Yes, you are correct. There is not a valve to release off gas on the Rainbow 300 chlorinator and we are not aware of a chlorinator which has this feature. We have read through the different pool chlorinator manuals and they state that you want to always keep the pool return lines open to prevent gas build-up.
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I have a Rainbow 300 Offline chlorinator, but it doesn't have the smaller cylinder piece in the picture on your website. What is this used for?
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The long cylinder piece in the picture is an optional piece for 1" chlorine tablets.
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What size tablets does the Rainbow 300 Offline chlorinator take? And how tablets at one time?
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The Rainbow 300 chlorinator uses both 1" and 3" tablets. You will need (98) 1" tablets and (11) 3" tablets.
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I have a 35,000 Gallon in ground pool. Will the Rainbow 300 handle this size pool or do I need to go with bigger unit?
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The Rainbow 300 chlorinator is good for pools 12-48k gallons, So, yes, this chlorinator is sufficient for your size pool.
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Is there a maximum distance the Rainbow 300 chlorinator can be from where it taps into the pool plumbing lines?
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Pentair does not mention a maximum distance but 8' of tubing is included with the chlorinator. We recommend that you contact Pentair directly for more information. Their technical support should be able to assist you. Their toll free number is 1-800-831-7133
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Do all the necessary parts come with the Rainbow 300 Offline Chlorinator?
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Yes, the Rainbow 300 comes with all the parts needed for installation. It comes with: the 1/4 in. feeder hoses, control valve and fittings.
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I have a variable speed pump and have been fine tuning the pump flow for my pool. What is the min psi / GPM required to run this?
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To properly assess the appropriate psi and gpm for any pool we would need more specifications on your system and pool. Such as pvc diameter, total hp and service factor of the motor , filter make and model. and if solar is present. General average for psi is betwenn 7 and about 17 psi on the filter gauge and gpm is generally between 65 to 90. Many variables though.
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I'm having difficulty locating the pressure nuts for securing a 1/4" line to the outlets.
Can I buy these seperately?
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What is the best way to keep the top lubricated for easy removal?
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Jack, Every time you're placing chlorine tabs into the chlorinator make sure you lubricate the o-ring and the threads on the cap.
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What is the best way to replace the 90 degree elbow on the bottom of the Rainbow offline 300 chlorinator, do you try to do it in place or remove the unit to work on.
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Jeff, You can remove the elbow from the unit with it in place or unscrew the tubes from the chlorinator and work on it.
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I've seen the Rainbow Offline chlorinator with a clear plastic chamber so you can see how much of the tablets are left. Do you sell the clear plastic chlorinator?
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Hi John, Yes we do carry the Clear Rainbow 300C Chlorinator here. We also carry an Off-line Chlorinator by Custom Molded Products W/ a Clear Glass Lid.
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Which Hayward offline chloronator would match rainbow 300 offline in performance . Have the Rainbow want to replace it with Hayward . Looks easier to open .
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Hi Stan the comparable Hayward chlorinator would be the Hayward CL220 Offline Chlorinator we also carry a good Offline Chlorinator by Custom Molded Products.
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Is bottom the inlet or the outlet? Is the inlet on the side and the outlet on the bottom? Just bought one yesterday help!
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Yes the inlet would be coming in at the top of the base near the flow control and the outlet goes out through the bottom of the chlorinator.
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I currently am using a hayward offline chlorinator. I am lucky to get one season in before it starts leaking (usually the lid). I would like to try the 300. Are the thread fittings for the tubing the same size? Also, what kind of lube do you use to keep the lid easy on and off?
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Hi Rob, The tubing and fittings are different but the size hole drilled into the PVC will work.
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looking for a feeder for a jacuzzi hot tub.
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Hi Mark, You can use the Rainbow 300 Offline Chlorinator on a Jacuzzi hot tub. You will have to follow the installation instructions to insure the tubes is placed in the correct position.
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The base of the chlorinator is setting in pool room on concrete floor. Its hard to open. It has three holes in base. Is it ok to put a 24" by 24" plywood base and screw it down.
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Yes, you can absolutely bolt this chlorinator down.
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Mine is bolted right to my concrete floor. Even with ly pubs on the o ring I sometimes have to use the handle of a wrench To turn the lid.
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I cannot find the correct manual for this and I have one, what size drill bit is recommended to drill the holes into the PVC. Can you provide a link for the manual as well. Thanks.
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Hi DoubleD, A 3/8" hole is required for the installation of this unit, click link Rainbow 300 & 320 Chlorinator Owner's Manual for manual.
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Does this chlorinator come with a screen inside ? Or do we just drop the 3 inch tablets in it? Mine did not come with an interior screen
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The tabs are just dropped into the canister, a screen doesn't come with it.
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Where do I buy the fittings for model 300? They were not in the box. Thanks!
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Here you can find the Fittings for the Rainbow 300 Chlorinator
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We are interested in installing the Rainbow offline unit in our 24K gal pool. Our plumbing (pump etc) was installed lower than the pool water line. Would we need a check valve if using the offline unit since it would be installed on plumbing lower then the pool waterline?
Thanks!
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Installing a check valve or two on the system in general would be a good idea in making service performed easier and safer.
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How is pH controlled when using this type of chlorinator?
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Hi. You can use a Commercial Pool Chemical Controller along with the Stenner Liquid Chemical Feeder.
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I've noticed that the elbow check valve in the bottom of this unit frequently gets clogged with chlorine corrosion. This prevents the small ball bearing inside from moving and seems to prevent the chlorinated water from going to the pool. Is there any way to prevent this issue?
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Hi. Unfortunately, there is no way to prevent corrosion from occurring since chlorine is highly corrosive. The parts used in the chlorinator should not corrode because of the material is made out of.
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on the rainbow 300 on my pool the bottom fitting is from heater ihave a top fitting to pool do I have to drill hole for fitting
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Hi, Bruce. Yes, you will have to drill holes in the pvc for the fittings.
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why would there still be no chlorine getting to pool even after changing out a clogged elbow check valve??? I have a 12,000 gal pool and 2 tabs in the chlorinator
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I bought one of these last year and this year it is leaking from the bottom swivel joint.
Is it repairable? If so, is there a manual or description of how to?
Below is a link to a video of the joint in question. I turned the unit upside down to better visualize.
https://photos.app.goo.gl/r79cRyVrETjsUFWu6
Yes, that is the Valve, Check With Elbow (r172061) We also offer other parts to the Rainbow Offline Chlorinators shown here http://www.inyopools.com/pool_parts_rainbow_offline_chlorinators.aspx
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My unit is full of air and doesn't fill with water. My installer says this is normal since the tabs are dissolved from the bottom of the canister. shouldn't the canister be filled with water?
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Hello, yes this is normal as these chlorinators are pressurized.
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I have a 7,500 gallon pool. Is this a good chlorinator for a pool this size?
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Hi Joseph, on average you may only use approximately 1-2 tablets weekly in this chlorinator but yes, it is suitable for your size swimming pool.
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Does this come with necessary parts for installing?
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Hello Craig. Yes, the Rainbow 300 Offline Chlorinator R171016 comes with all necessary parts for installation. Rainbow 300 Offline Chlorinator - R171016
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Hi, we’ve moved into a home with an existing pool. We have a salt generator, and one of these offline feeders. If we’re using salt to chlorinate, what is the purpose of this chlorine tablet feeder? Thanks!
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If the salt system is working properly the offline feeder is not needed. I own a pool with a salt system and do not have a feeder. Chanced are the chlorine feeder was in there first and later the homeowner put in the salt system. However, that said I sometimes throw a 3" tab in the pool when trying to adjust my pool chemistry. So it is not totally useless. Also, this is assuming your salt chlorine generator is the correct size and producing the correct amount of chlorine.
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