Logo mit zwei ineinandergreifenden, geschwungenen blauen Linien links und dem Schriftzug COALSI in schwarzer Großschrift rechts.

Your opinion counts!

Help us make COALSI even better.
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We would like to know how satisfied you are with COALSI and which services you would like to see in the future.

Your answers will help us to tailor our products and services even more closely to your requirements.
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The survey only takes about 2 minutes. Participation is anonymous and no personal data is required.

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How satisfied are you with COALSI overall?
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Please rate your satisfaction on a scale of 1 to 5.
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1 = very dissatisfied, 5 = very satisfied

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How interesting would a filter mat subscription be for you?
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When you purchase a COALSI filter solution, the appropriate replacement mat is delivered automatically after about a year. You don't have to worry about when a mat change is due, and you'll have the right replacement mat to hand in good time.

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How interesting would an installation service be for you?
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If required, COALSI can also take care of the on-site installation of filter solutions – for example, when fitting sewer filters.

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How interesting would a filter mat replacement service be?
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COALSI could take over the replacement of your filter mats on-site in the future.

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Is there anything we at COALSI could do even better?
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Is there a service, product or feature you would like us to offer?
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Thank you!

Your opinion helps us to further develop COALSI.

As a small thank you, we are giving away a COALSI merch pack to one of our participants.
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Thank you!

We have received your answers.
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Thank you for taking the time to share your opinion with us. Your feedback helps us to further develop our products and services.
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And perhaps we will be able to congratulate you on your COALSI merch pack soon.
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